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By Authority OfTHE UNITED STATES OF AMERICA

Legally Binding Document

By the Authority Vested By Part 5 of the United States Code 552(a) and

Part 1 of the Code of Regulations 51 the attached document has been dulyINCORPORATED BY REFERENCE and shall be considered legally

binding upon all citizens and residents of the United States of America.

HEED THIS NOTICE: Criminal penalties may apply for noncompliance.

Official Incorporator:

THE EXECUTIVEDIRECTOROFFICE OF THE FEDERAL REGISTER

WASHINGTON, D.C.

Document Name:

CFR Section(s):

Date of Action:

e

ANSI Z87.1-2003: Practice for Occupational and

Educational Eye and Face Protection

29 CFR 1910.133

74 FR 40447, Aug. 11, 2009

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mericanNationalStandard

Published by

An American National Standard implies a consensus of those substantially concerned with itsscope and provisions. An American National Standard is intended as a guide to aid the manufacturer the consumer and the general public. The existence of n American National Standard doesnot in any respect preclude anyone whether he/she has approved the standard or not from manufacturing marketing purchasing or using products processes or procedures not conforming to thestandard. American National Standards are subject to periodic review and users are cautioned toobtain the latest editions.The American National Standards Institute does not develop standards and will in no circumstancesgive an interpretation of any American National Standard. Moreover no person shall have the rightor authority to issue an interpretation of an American National Standard in the name of theAmerican National Standards Institute.CAUTION NOTICE: This American National Standard may be revised or withdrawn at anytime. The procedures of the American National Standards Institute require that action betaken to reaffirm revise or withdraw this standard no later than five years from the date ofapproval. Purchasers of American National Standards may receive current information onall standards by calling or writing the American National Standards Institute.

American Society of Safety Engineers1800 East Oakton Street Des Plaines IIIinois 600182187Copyright 2003 by American Society of Safety EngineersAll rights reserved.No part of this publication may be reproducedin any form in an electronic retrieval system orotherwise without the prior written permissionof the publisher.Printed in the United States of America

For additional copies contact:merican Society of Safety Engineers1800 East Oakton StreetDes Plaines Illinois 60018-2187847-699-2929

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oreword (This Foreword is not a part of American National Standard Z87.1-2003)The history of Z87 began with the first edition of the Z2 standard for head and eye protection andwas developed from a set of safety standards originally prepared cooperatively by the War andNavy Departments and the National Bureau of Standards.The second edition of Z2 was developed by a standards committee organized under the AmericanStandards Association and was published in 1922 as the National Bureau of Standards Handbook H2.In 1938, Z2 was revised to include respiratory protection and was published as the National Bureauof Standards Handbook H24.In 1946, Z2 was revised to include advances in safety equipment technology such as the use ofplastics for eye protection. Three subcommittees were organized. A subcommittee on eye protection was organized under the supervision of the National Bureau of Standards. A subcommittee onrespiratory protection was organized under the supervision of the U.S. Bureau of Mines and a subcommittee for head protection was organized under the Department of the Navy. In 1959, Z2 wasapproved as the American Standard Safety Code for Head, Eye and Respiratory Protection, Z2.1-1959.On November 24, 1961, the Standards Safety Board approved to divide the Z2 project into threeseparate standards: Z87 - Industrial Eye Protection; Z88 - Industrial Respiratory Protection; Z89 -Industrial Head Protection. The Z87.1 Standards Committee under the procedures of the USAStandards Institute, formally the American Standards Association, revised the 1959 version, whichwas approved on September 18 1968 as the USA Standard Z87.1 - 1968. The USA StandardsInstitute changed its name in October 1969 to the American National Standards Institute and theZ87.1 Standard became the American National Standard fO ; Occupational and Educational Eye andFace Protection, ANSI Z87.1 - 1968.In the Z87 Standards Committee, membership was reconstituted and broadened in 1973 to includeall organizations with a substantial interest in the design or use of eye and face protection. TheCommittee revised the 1968 version, which was approved on February 27, 1979 as the AmericanNational Standard for Occupational nd Educational Eye and Face Protection, ANSI Z87.1 - 1979.In 1980 the Z87 Standards Committee reconvened to begin their update of the 1979 version. Inorder to better accommodate advancements in safety equipment technology more emphasis wasplaced on developing performance oriented standards. A Bureau of Labor Statistics study revealedthat most eye injuries to those wearing protectors were caused by insufficient angular protection.Therefore, angular impact testing requirements were included. In 1983, an American WeldingSociety study was used to update and improve the transmittance requirements for filter lenses. Thestandard was approved on February 2 1989 as the American National Standard Practice forOccupational and Educational Eye and Face Protection, ANSI Z87.1-1989. The standard was subsequently reaffirmed by the Z87 Committee per ANSI procedure in 1998 and is still cited by reference by the U.S. Occupational Safety and Health Administration, (OSHA).This newest edition of the Z87 Standard is considered by the committee members to be significant,as it will strengthen the impact resistance requirements of the standard while still allowing forfuture technologies and science. This standard once again while voluntary also offers an enhanceduser selection chart, which indicates a system of selecting eyewear appropriate to identified hazards. Of importance to users is the knowledge that different types of products, (spectacles, goggles, and face shields) are tested to different levels of impact resistance, thus, it is incumbent uponthe user to select a product being tested to the hazard being exposed to.Suggestions for improvement of this standard are welcome. They should be sent to the AmericanSociety of Safety Engineers, 1800 East Oakton Street, Des Plaines, IL 60018 - 2187.

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This standard was processed and approved for submittal to ANSI by the Accredited Standards Committeeon Safety Standards for Eye Protection, Z87. Committee approval of the standard does not necessarily implythat all committee members voted for its approval. At the time it approved this standard, the Z87 Committe,had the following members: .Tod Tun iff, ChairmanDaniel Torgersen, Vice-ChairmanTimothy R. Fisher, CSP, ARM, CPEA, SecretaryPatrick Arkins, Assistant SecretaryOrganization RepresentedAlliance for TelecommunicationsIndustry SolutionsAmerican Academy of OphthalmologyAmerican Academy of OptometryAmerican Ceramic SocietyAmerican Gas AssociationAmerican Insurance AssociationAmerican Optometric AssociationAmerican Society of Safety EngineersAmerican Welding SocietyEdison Electric InstituteGlass Lens CouncilInternational Safety Equipment AssociationNational Education AssociationNational Association of Optometristsand OpticiansNational Institute for OccupationalSafety and Health (NIOSH)Optical Laboratories AssociationOpticians Association of AmericaPrevent Blindness AmericaSociety of the Plastics IndustryU.S. Department of Labor/OSHAU.S. Department of the Air ForceU.S. Dept. of the ArmyU.S. Dept. of the NavyUnited Auto Workers UnionVision Council of AmericaANSI Z80 Committee Ophthalmic LensesANSI Z88 Committee Respiratory ProtectionZ89 Committee Head ProtectionICS Laboratories, Inc.Individual Exper t

Name of RepresentativeSteve BarclayPaul EVinger M.D.Bernard A Morewitz, O.D., EA.A.O.W Paul Holbrook, Executive DirectorPhillip BennettKimberly DenbowJohn ArlingtonLowell Glatt, O.D.Gregory Good, Ph.DJack B. HirschmannRichard Casey, CSPPhilip M JohnsonJean Fran90is LaterreRichard Montgomery, CSPCharles J. KellyJohn MillerDick EmeryJohn E. SalceJanice Comer Bradley, CSPRichard VerdugoLee HandelFranklin D. RozakLarry L Jackson, Ph. D.James R Harris, P.E.Daniel TorgersenJeffrey KoshJohn M. YoungTod TurriffHugh Patrick TonerJoseph PipkinAnthony Okoren, Lt. ColonelDonald McDuffie, Lt. ColonelDale Barrette, CommanderJim Howe, CIHTim McClainKenneth WoodDavid DevineRobert DziubanJeffrey KoshWilliam E Newcomb, CSPJames K ByrnesJanice C. Bradley, CSPDale B Pfriem, Individual ExpertMichael W Schaus

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Contents TOPIC PAGE9 Faceshields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 1 Introduction 299.2 Impact Testing Requirements 309.3 High Impact Testing Requirements 309.4 Optical Requirements for Plano Faceshield Windows 319.5 Requirements for Wire-Screen Windows 319.6 Flammability 319.7 Corrosion Resistance 319.8 Cleanability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329.9 Replacement Faceshield Windows 329.10 Marking 3210 Welding Helmets and Handshields . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3310 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3310.2 Impact Testing Requirements 3310.3 High Impact Testing Requirements 3410.4 Optical Requirements for Plano Welding Helmet Lenses . . . . . . . . . . . 3410.5 Optical Requirements for Non-Plano Welding Helmet Lenses 3510.6 F l ammab i l i t y 3510.7 Corrosion Resistance 3510.8 C l eanab i l i t y 3510.9 Non-Lens Area Transmittance and Light Tightness 3510.10 Replacement Welding Helmet Lenses . . . . . . . . . . . . . . . . . . . . . . . . . . . 3510 11 Marking 3610.12 Transmittance Requirement Automatic Darkening Welding 36Filter Lenses10.13 Cover Lenses 37

Respirators . 3711 1 Introduction 3711.2 Full Facepiece Respirators 3711.3 Loose Fitting Respirators 3711.4 Full Facepiece Welding Respirators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3711.5 Loose Fitting Welding Respirators 3712 Transmittance Requirements for Clear Lenses Filter Lenses 37and Automatic Darkening Filter Lenses12 1 Formulae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3812.2 Transmittance Requirements 3912.3 Switching Index Requirements 4113 Instructions Use and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 4213 1 General Requirements 4213.2 Instructions 4213.3 Inspections 4213.4 Ma i n t e n a n c e 4213.5 Care 4213.6 Training 42

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TOPIC1414 114.214.314.414.514.614.714.814.914.1014.1114.1214.1314.14

PAGETest Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42High Mass Impact Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43High Velocity Impact Test 43Tests for High Impact Prescription Lenses 44Drop-Ball Impact Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Penetration Test 46Flammability Test 47Corrosion Resistance Test 47Cleanability Test 47Prismatic Power Test 48Refractive Power, Resolving Power and Astigmatism Tests . . . . . . . . . . . 48Haze Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Transmittance Test 49Switching Index Test 49Light Tightness Test 50

15 Warning Label . 5115 1 Purpose 5115.2 Label or Tag Requirements 51TABLESTable 1 - Transmittance Requirements for Clear and Filter Lenses . . . . . . 40Table 2 - Transmittance Requirements for Special-Purpose Lenses . . . . 41Table 3 - Switching Index Requirements for Automatic Darkening 41Welding Filter LensesFIGURES

Figure 1 - Spectacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 2 - Temples 14Figure 3 - Fronts . . . . . . . . . . . . . . . 14Figure 4 - Bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 5 - Side Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 6 - Life-front spectacles 16Figure 7 - Goggles 16Figure 8 - Faceshield 17Figure 9 - Welding Helmets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18ANNEXESAnnex A - Spectral Factor Tables (normative) 52Annex B - Test Apparatus (normative) . . . . . . . . . . . . . . . . . . . . . . . . . . . 56Annex C - Test Apparatus (informative) 58Annex D - Calibration of Test Telescope (informative) 60Annex E - Sources for Test Apparatus (informative) . . . . . . . . . . . . . . . . . 61Annex F - Referenced Publications (informative) . . . . . . . . . . . . . . . 62Annex G - Required Marks and Marking Locations by 63Product Category (informative)Annex H - Eye Injury Report Form (informative) 64Annex I - Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

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merican National StandardOccupational and EducationalPersonal Eye and FaceProtection Devices

1 PrefaceThis standard for personal eye and faceprotective devices (hereinafter referred to asprotectors) is, as far as possible, designed to beperformance oriented. Every effOlt was made todevelop requirements that are consistent with, ormore stringent than, ANSI Z87.1-1989(R-1998).This standard recognizes the Bureau of LaborStatistics study that revealed the need forangular protection, in addition to frontalprotection, in eye and face protectors worn inthe occupational setting.Protectors do not provide unlimited protection .In the occupational and educationalenvironment, protectors are not substitutes formachine guards and other engineering controls.Protectors alone should not be relied on toprovide complete protection against hazards, butshould be used in conjunction with machineguards, engineering controls, and sound safetypractices. Every effort should be made toeliminate eye and face hazards in occupationaland educational settings.In 1992, the Occupational Safety and HealthAdministration began regulating occupationalexposure to bloodborne pathogens and, as aresult, now require employers to providepersonal protective equipment (PPE) includingeye and face protection for employees exposedto these hazards. At the time of the publicationof this standard, no standards existed for eyeand face protection intended to provideprotection from bloodborne pathogens.Nevertheless many employers have elected toprovide their employees with PPE conformingto the requirements of ANSI Z87. Theseproducts m yor may not provide adequateprotection against bloodborne pathogens.

Accidents Involving Eye Injuries, U.S. Department ofLabor, Bureau of Labor Statistics, April 1980, Report 597.

AMER1CAN NATIONAL STANDARD Z87.1-200

Extreme caution must be exercised in theselection and use of personal protectiveequipment in applications for which noperformance requirements or standardizedtesting exists.2 Scope Purpose ApplicationExceptions and Interpretations2.1 ScopeThis standard sets forth criteria related to thedescription, general requirements, testing,marking, selection, care, and use of protectors tominimize or prevent injuries, from such hazardsas impact, non-ionizing radiation and chemicaltype injuries in occupational and educationalenvironments including, but not limited to,machinery operations, material welding andcutting, chemical handling, and assemblyoperations.2.2 PurposeThis standard provides minimum requirementsfor protectors including selection, use, andmaintenance of these protectors as devices tominimize or prevent eye and face injuries.2.3 Application2.3.1 The requirements of this standard applyto protectors when first placed in service.2.3.2 Protectors bearing the marking Z87 orrepresented in any way as being in compliancewith this standard, sha meet all requirements ofthis standard in their entirety. All componentsof eye and face protective devices shaH complywith the requirements of this standard,2.3.3 Compliance with this standard cannotalways be assured when replacementcomponents are used. End users shall exerciseextreme care in the selection and installation ofreplacement components to ensure compliancewith this standard.

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faceshield. A protective device commonlyintended to shield the wearer's face, or portionsthereof, in addition to the eyes, from certainhazards, depending on faceshield type.Paceshields shall be used only in conjunctionwith spectacles and/or goggles.faceshield, welding. A faceshield intended forlimited welding applications. 'Paceshields shallbe used only in conjunction with spectaclesand/or goggles.fil ter lens. See lens, filter .fracture. A lens will be considered to havefractured if it cracks through its entire thicknessinto two or more separate pieces, or if any lensmaterial visible to the naked eye becomesdetached from the inner surface.frame. A device, which holds the lens or lenseson the wearer.front. That part of a spectacle or goggle framethat is intended to contain the lens or lenses.glare. Uncomfortably bright light withouthazardous levels of ultraviolet or infraredradiation.goggle. A protective device intended to fit theface surrounding the eyes in order to shield theeyes from certain hazards, depending on goggletype.goggle, welding. A goggle intended for limitedwelding applications.handshield. A hand-held welding helmet. Seewelding helmet.

haze. The percent of incident light that is nottransmitted in a straight line through the lens butforward scattered, greater than 2.5 0 diverging.headgear. That part of a protective helmet,hood, or faceshield that supports the device onthe wearer's head.

AMERICAN NATIONAL STANDARD Z87.1-200

High Impact Protectors/Lenses. Protectorsthat are used in an environment where theknown or presumed hazards are of high velocityor high mass or a high impact nature.hood. A device that completely covers the head,neck, and portions of the shoulders.infrared radiation (IR). As related to thisstandard, electromagnetic energy withwavelengths from 780 to 2000 nanometers.interpupillary distance (PD). The distance inmillimeters between the centers of the pupils ofthe eyes.lens. The transparent part of a protective devicethrough which the wearer sees, also referred tos a plate or window for some devices.lens, automatic darkening welding filter.Afilter lens, which automatically switches from alight state to a dark state in response to a,changeof light intensity.lens, cover. An expendable lens used to protectanother lens surface from damage.lens, filter. A lens that attenuates specificwavelengths of ultraviolet, visible, and infraredradiation.lens, impact-resistant. A lens capable ofwithstanding the appropriate impact tests of thisstandard.lens, non-removable. A lens and holder that arehomogeneous and continuous.lens, photochromic. A lens, which darkenswhen exposed to, and fades when removedfrom, ultraviolet radiation and/or sunlight.lens, non-plano. Lenses made to an individualprescription (Rx/prescription ophthalmic) orlenses using non-prescription, non-plano lensesfor magnifying purposes.

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lens, plano (non-Rx). A lens that does notincorporate a corrective prescription; this lens isnot necessarily flat. A plano lens is sometimescalled afocal.lens, polar izing. A lens, which transmits lightpreferentially in particular planes of orientation.lens, prescription (Rx). A lens manufactured tothe wearer's individual corrective prescription.lens, tinted. A lens with color such as amber,smoke, or cobalt, which does not meet therequirements of Table 1.lens, welding filter. A lens specified for use forwelding or brazing.lift-front. A type of supplementary lens andholder that covers the viewing area of aprotector immediately in front of the wearer'seyes and that can be positioned outside the lineof sight.light. Optical radiation weighted by its ability tocause visual sensations.light state. The highest operating luminoustransmittance of an automatic darkeningwelding filter lens.luminous transmittance (Td. The fraction oflight (380-780 nm) passing through a medium.lux (Ix). A unit of measurement of illuminanceequal to one lumen per square meter of theilluminated surface.millisecond (ms). One thousandth of a second;10 3 second.

nanometer (nm) . A unit of measurement ofwavelength equal to one billionth of a meter; 19 meter.NIOSH. National Institute for OccupationalSafety and Health, the federal agencyresponsible for, among other things, certifying

the respiratory protective properties ofrespirators.optical density. A measure of the transmittanceof an optical device.

optical radiation. As related to this standard,that portion of the electromagnetic spectrumranging in wavelength from 200 nm to 2000 nm,having the nominal sub-intervals: UV C (200-280 nm), UV-B (280-315 nm), UV-A (315-380nm), VISIBLE (380-780 nm), IR-A (780-1400nm), IR-B (1400-3000 nm), and IR-C (3000 nm-1 mm).plano . See lens, plano .power. See refractive power , resolvingpower , and prismatic power .prismatic power, prism . A measure of theangular deviation expressed in prism d i o p t e r s ~ )of a light ray after passing along the viewingpath through a lens. (One prism diopter equalsdeviation of 1 em per meter of path length.)protective device, protector . A completeproduct meeting the requirements of thisstandard.protective helmet. Headwear conforming toANSI Z89 .1-1997, or the latest revision thereof;also known as a hard hat .refractive power, power . A measure of theability of a lens to focus light rays, expressed indiopters (D).resolving power, definition . The measure ofthe ability of a lens to form separate distinctimages of two objects close together.respirator, ull facepiece. A tight fittingrespirator that covers the nose, mouth and eyesfrom approximately the hairline to below thechin.

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respirator, loose fitting. A respiratory inletcovering that is designed to form a partial sealwith the face, or that completely covers the headand neck, and may cover portions of theshoulder.respirator, welding. A respirator intended toprovide optical radiation protection for weldingoperations.retained. In this standard, the use of the wordretained means that the lens does not separate

from the frame by more the 25% of itsperiphery.shall. In this standard, the use of the wordshall indicates a mandatory requirement.

should. n this standard, the use of the wordshould indicates a recommendation.

sideshield. A part of, or attachment to, aspectacle that provides side impact resistance.spectacles. A protective device intended toshield the wearer's eyes from certain hazards,depending on the spectacle type.switching index. The response time of anautomatic darkening welding filter lens.temple. That part of a spectacle framecommonly attached to the front and generallyextending behind the ear of the wearer.type tests. One or more tests performed on anitem to approve a material, construction, modelor design to determine if it is capable of meetingthe requirements of a product standard.ultraviolet radiation (UV). In this standard,electromagnetic energy with wavelengths from200 to 380 nanometers.welding goggle. See goggle, welding .welding faceshield. See faceshield, welding .welding helmet. A protective device intendedto provide protection for the eyes and face


against optical radiation and weld spatter, whichshall be worn only in conjunction withspectacles or goggles.window. The lens portion of a faceshield (seelens ).window, non-removable. A window and holderthat are homogeneous and continuous.5 Referenced PublicationsThe following standards contain provisions,which, through reference in this text, constitutemandatory provisions of this standard. Otherreference materials, which do not containmandatory provisions, are listed in Annex F.American Conference of GovernmentalIndustrial Hygienists - Relative SpectralEffectiveness by Wavelength -1993-1994. . ;ANSI Z80.1-1999, American National Standardfor Ophthalmics. - Prescription OphthalmicLenses - Recommendations.ANSI Z80.5-1997, American National StandardRequirements for Dress Ophthalmic Frames.ASTM D635-1998, Test ethodfor Rate ofBurning and/or Extent and Time ofBurning ofSelf-Supporting Plastics ina HorizontalPosition.ASTM DlO03-00, Standard Test ethodforHaze and Luminous Transmittance ofTransparent Plastics.ASTM D2240-2002, Standard Test ethodforRubber Property - Durometer Hardness.ASTM D412-1998a, Standard Test Methods forVulcanized Rubber and Thermoplastic Rubbersand Thermoplastic Elastomers - Tension.NBS Special Publication 374.

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6 Selection Use and Maintenance oProtectors6.1 ProtectorsProtectors are personal protective devicesdesigned to protect the wearer from potentialhazards that could adversely affect a person seyes and/or face. Depending on the potentialhazard, the protector may be designed to blockflying objects or hazardous liquids, filter opticalradiation, or enhance the wearer s vision forperforming certain visual tasks. It is alsoimportant to realize that different categories aretested at different levels of impact resistance.There are three categories of protector lensesbased on transmittance: clear, filter and specialpurpose (tables 1 and 2). There are many typesof protectors available. n the followingsections, illustrations of various types of devicesused to protect the eyes and face are providedfor guidance only; they are not intended to showevery type of device available.6.1.1 Spectacles and SpectacleComponentsSpectacles are protective devices designed toshield the wearer s eyes from various impact, orimpact and optical radiation hazards. Aspectacle commonly consists of the followingcomponents: a front, a lens or lenses, a pair oftemples, and side protection (figure 1).Spectacle components can be assembled invarious combinations to make a completeprotector to provide the user with a wideselection of suitable equipment for differingapplications.

Figure 1 - Spectacles

6.1.1.1 TemplesA temple (figure 2) is that component of aspectacle that extends from the front to justbehind the wearer s ear or continues completelyaround the wearer s head and is used to securethe frame in its proper use position. Temples areusually hinged at the front to permit easystorage when not in use and they are commonlyavailable in the following three types: I)spatula temples, (2) cable temples, and (3)headband temples. To properly fit the widevariety of wearers, temples are adjustable and/oravailable in various lengths.

Figure 2 - Temples: spatula cable andheadband6.1.1.2 FrontsThe front (figure 3) is that component of aspectacle that retains the lens or lenses in theproper orientation for viewing. The front can bea separate part from the lens (removable lenstype) or can be molded as an integral part of thelens (non-removable lens type). Frames forprescription lenses usually incorporate theremovable type lens front. Cover spectacles aretypically the non-removable lens type.

Figure 3 - Fronts: Spectacles with nonremovable lenses

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6.1.1.3 LensesLenses are that component of a spectaclethrough which the wearer sees and whichprovides a protective barrier. Lenses areavailable in various materials, shapes,thicknesses, shades and tints depending on theirparticular application. Lenses also can be madeto refract or bend light to magnify an object orprovide corrective vision to a wearer'sindividual prescription (Rx). Lenses that do notrefract light are considered plano and do notprovide corrected vision.6.1.1.4 Bridges/Nose PieceA bridge or nose piece (figure 4) is thatcomponent of a spectacle, which supports thefront on a wearer's face and typically rests onthe bridge of the wearer's nose. Bridges arecommonly available in three types: 1) fixedbridge (non-adjustable), (2) universal/saddle,and (3) adjustable nose pad. Bridge sizes areexpressed in millimeters and measured as thedistance between lenses (DBL).

\7 \Figure 4 - Bridges: fixed and adjustablenose pad6.1.1.5 Side ProtectionSide protection (Figure 5) is that component of aspectacle that extends from the front to somedistance between the front and the wearer's earand provides limited protection to the wearer'seyes from lateral hazards. Side protection maybe an integral pmt of the frame or lens, a


separate sideshield that is permanently attachedto the frame, or a removable part of the frame.The function and coverage of side protection aredefined by the high velocity impact test (section14.2).

Figure 5 - Side Protection: flatfoldsideshields and detachable sideshields6.1.1.6 Special Purpose SpectaclesSpecial purpose spectacles are those which uselenses designed for a specific application.Examples of products for such applicationsinclude, but are not limited to, sunglasses, notchfilters (e.g. - didymium containing), and furnaceglasses. Special purpose spectacles use lensesthat meet the requirements of table (2).6.1.1.7 Lift-Front SpectaclesA lift-front spectacle (figure 6) is a spectacleconforming to the requirements of this standardthat has an additional permanent or removablefront attached, that can be raised or lowered to, the wearer's line of sight. The lift-frontcomponent is typically used to provideadditional protection, as needed, from glare,optical radiation, or both, or is used for specialviewing tasks, such as magnification, and ismarked accordingly. Lift-front spectacles are

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evaluated for impact and optical perfOlmancewith the lift-front in the up position. The liftfront lens is evaluated for optical performancerequirements of 7.4 or 7 5

Figure 6 - Lift-front spectacles6.1.2 Goggles and Goggle ComponentsGoggles are protective devices designed to fitsnugly but not necessarily seal completely to awearer s face surrounding the wearer s eyes inorder to shield the eyes. Goggles provide moreprotection than spectacles from impact, dust,liquid splash and optical radiation hazards. Agoggle commonly consists of the followingcomponents: a frame, a lens or lenses,ventilation area and headband.Goggles (figure 7) are commonly available intwo styles: (1) eyecup goggles that cover the eyesockets completely; and (2) cover goggles,which may be worn over spectacles. Goggles arecommonly available with rigid or flexibleframes and are usually ventilated to minimizefogging. Three different types of ventilation areavailable: 1) direct ventilation, (2) indirectventilation, and (3) goggles with no ventilationprovision. Direct ventilated goggles permit thedirect passage of air from the work environmentinto the goggle and are not recommended foruse in protection against liquid splash hazards.Indirect ventilated goggles permit the passage ofair and may prevent the direct passage of liquidsand/or optical radiation. Goggles with noprovision for ventilation minimize passage ofdusts, mist, liquid splash and vapor. Gogglesare available in many configurations to providethe user with a wide selection of suitableequipment.

Headband 0Frame ; ~ Ventilation area

ens . \Bridge I

Figure 7 - Goggles: eyecup goggle (showingcomponents), cover goggles with directventilation, and indirect ventilation, andnon-ventilated goggles6.1.2.1 Side ProtectionSide protection is that component of a gogglethat extends from the front to some distancebetween the front and the wearer s ear andprovides limited protection to the wearer s eyesfrom lateral hazards. Side protection in gogglesis commonly an integral part of the frame orlens. The function and coverage of sideprotection are defined by the high velocityimpact test (section 14.2).6.1.2.2 Lift rontA lift-front goggle is a goggle conforming to therequirements of this standard that has anadditional permanent or removable frontattached, that can be raised or lowered to thewearer s line of sight. The lift-front-componentis typically used to provide additionalprotection, as needed, from glare, optical

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radiation, or both, or is used for special viewingtasks, such as magnification, and is markedaccordingly. Lift-front goggles are evaluated forimpact and optical performance with the liftfront in the up position. The lift front lens isevaluated for optical performance requirementso 8.4 or 8.5.6 1 2 3 Special Purpose GogglesSpecial purpose goggles are those which uselenses designed for a specific application.Examples o products for such applicationsinclude, but are not limited to, notch filters (e.g.- didymium containing) and furnace goggles.Special purpose goggles use lenses that meet therequirements o f table 2.6 1 3 Faceshields and FaceshieldComponentsFaceshields are protective devices designed toshield the wearer's face, or portions thereof, inaddition to the eyes, from various hazards.Faceshields shall be used only in conjunctionwith spectacles and/or goggles and provide ahigher level o f protection than spectacles orgoggles alone. Faceshields are used to provideprotection from impact, dust, liquid splash andoptical radiation hazards. Faceshields (figure 8)may be used with a headgear assembly designedto suspend a transparent window that surroundsand shields the wearer's face. Faceshields maybe incorporated with head protection.Faceshields also may provide neck and chinprotectors. The assembled devices are availablein many combinations o the various componenttypes to provide the user with a wide choice osuitable equipment.

Figure 8 Faceshield


6 1 3 1 Faceshield WindowsFaceshield windows provide a protective barrierbetween the work environment and the wearer'seyes and face. Faceshields are available invarious materials, shapes, thickness, shades andtints depending on their pat1icular application.Commonly available windows are plastic,plastic with a glass insert, or a wire screen.6 1 3 2 Special Purpose FaceshieldsSpecial purpose faceshields are those which usewindows designed for a specific application.Special purpose faceshields may provide limitedprotection from impact hazards, opticalradiation, or both. Special purpose faceshieldsmeeting certain light transmittance requirementsare marked as light , medium , or dark(section 9.4.5) or meet the requirements otable 2.6 1 4 Welding Helmets andHandshieldsWelding helmets and handshields are protectivedevices designed to provide protection to awearer's eyes, face, ears, and front o the neckagainst optical radiation and weld spatter.Welding helmets and handshields shall be usedonly in conjunction with spectacles, goggles, orboth. There are three types (figure 9 commonlyavailable: 1) helmet with stationary lens, (2)lift-front helmet; and (3) handshield. A weldinghelmet may be mounted on a protective helmetwith special accessories. A welding helmet maybe the respiratory inlet covering o a loosefitting facepiece respirator.

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Figure Welding helmets: helmet withstationary lens liftfront helmet andhandshield6.1.4.1 Special Purpose Lenses andWindowsSpecial purpose lenses are designated as suchbecause they do not meet the transmittancerequirements of table I, but do meet thetransmittance requirements of table 2 A typicalexample is a cobalt furnace lens.Special purpose lenses and windows are fUliherclassified and marked in accordance with therequirements of section 10.11. Only devicesmeeting the applicable sections of this standardshall be used with special purpose lenses. (Foradditional information, see ANSI Z49.1-1999.)6.1.5 RespiratorsFull facepiece respirators are NIOSH-approved,tight fitting respirators designed to provide acomplete seal with the face and to provideprotection to the wearer s eyes from impacthazards in addition to eye irritants. Loose fittingrespirators are NIOSH-approved respiratorsdesigned to provide a partial seal with the faceand to provide protection to the wearer s eyesfrom impact hazards in addition to eye in-itants.Welding respirators are NIOSH-approvedrespirators designed to provide protection to the

wearer s eyes from impact and optical radiationhazards in addition to eye initants. Dependingon the type of welding, the respirator may bedesigned to provide protection to the face, earsand front of the neck against optical radiationand weld spatter.6.2 Hazard Assessment and ProtectorSelection6.2.1 General RequirementsProtectors shall be required where there is areasonable probability of an eye or face injurythat could be minimized or prevented by the useof such protection. n such cases, employers andeducational authorities shall make eye and faceprotectors conveniently available to employeesand students for their use in the workenvironment, per applicable federal and stateregulations. The employees and students shalluse such devices. Where there is a reasonableprobability of impact from flying objects, aprotector with side protection shall be required.Protectors are not substitutes for engineeringcontrols and sound safety practices. Protectorsalone should not be relied upon to provide thesole means of protection against eye and facehazards. Protectors shall be used in conjunctionwith engineering controls and sound safetypractices. Known hazards should be removed orminimized to the extent possible.Employers and employees should consult theirfederal, state and local safety and healthregulatory authorities to become knowledgeableof the legal requirements applicable to theirarea. Under the Department of Labor, theFederal Occupational Safety and HealthAdministration (Fed OSHA) has codified in 29Code of Federal Regulations (CFR) 1910Occupational Safety and Health Standards forGeneral Industry and 29 CFR 1926Occupational Safety and Health Standards forthe Construction Industry specific legalrequirements and guidelines that employersmust follow to protect their employeesadequately (see specifically 29 FR 1910.133

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o protective equipment is as follows:(1) Become familiar with the SelectionChart (Annex I - Attached at the end o thestandard), the types o protective equipmentthat are available, their capabilities andlimitations.(2) Compare the hazards associated withthe environment, i.e., impact velocities,masses, projectile shape, radiationintensities, etc., with the available protectiveequipment.3) Make a judgment in selection o theappropriate protective equipment so that theprotection is consistent with the reasonablyprobable hazard.

(4) Basic impact protectors (lenses) may beused only in an environment where theknown or presumed hazards are o lowvelocity, low mass and low impact nature.High impact protectors shall be used in anenvironment when the known or presumedhazards are o a high velocity, high mass orhigh impact nature.(5) Provide and fit the user with theprotective device and provide instruction onits care, use and limitations as recommendedin sections 6.2.4 and 6.2.6.

(Note: Be aware that spectacles, goggles, andface shields are tested with different impactcriteria so the protector selection should beconsistent to the testing.)The Selection Chart (Annex I - Attached at theend o the standard) is intended to aid inidentifying and selecting the types o eye andface protectors that are available. Thecapabilities and limitations for the hazardsource operations are listed in this guide. Thisguide is not intended to be the sole reference inselecting the proper eye and face protector.

6.2.4 Product Use and LimitationsProtectors are a personal item. They should beissued for exclusive use by a particularindividual. However, in circumstances whereprotectors are reissued, the protectors shall bemaintained in a sanitary and reliable conditionas described in section 6.2.6.Employers and educational authorities shouldtrain their employees and students in the properuse, care, application, inspection, maintenance,storage, and limitations o protective devicesand provide them with all warnings, cautions,instructions and limitations

included with the protector by the manufacturer.The wearer should follow all instructionsprovided by the manufacturer.Caution shall be exercised to ensure that thelevel o protection provided by any protector isadequate for its intended purpose.See the Selection Chart (Annex I - Attached atthe end of the standard), for information onspecific applications.For more information regarding training pleasereview the American National Standard, Z490.1-2001, Criteria for Accepted Practices in Safety,Health, and Environmental Training .6.2.4.1 Special Purpose Protectors andLensesSpecial purpose protectors and lenses are thosewhich meet the requirements o table 2, but donot meet the requirements o table 1. They aredesigned for specific applications. They mightnot provide adequate ultraviolet protection,infrared protection, or ultraviolet and infraredprotection when used for applications for whichthey are not designed. Therefore, specialpurpose protectors and lenses shall be used onlyafter a complete hazard assessment and at thediscretion o the individual responsible for theselection o protectors.

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6.2.4.2 Prescription (Rx) EyewearWearers of prescription (Rx) eyewear shall weareye protection that incorporates the prescriptionin its design or that can be worn overprescription lenses without disrupting either theprescription eyewear or the protective eye wear.Contact lens wearers should recognize thatdusty and/or chemical environments mayrepresent an additional hazard. Contact lensesare not protective devices. Wearers of contactlenses shall wear appropriate protectors inhazardous environments.6.2.4.3 Filter Lenses and WindowsA filter lens meets the ultraviolet, luminous andinfrared transmittance requirements of table 1and is marked with a shade number thatindicates its transmittance levels in accordancewith table 1. Filter lenses of an appropriateshade are suitable for protection from directexposure to optical radiation from sources ofvery high radiance, such as welding arcs. Filterlenses are also suitable for protection fromsources of low radiance, provided that they arenot so dark as to interfere with normal visualperformance of the task.6;2.4.4 Tinted Lenses and WindowsLenses having low luminous transmittanceshould not be worn indoors, except whenneeded for protection from optical radiation.Care should be exercised in conjunction withwearing such lenses for driving vehicles withtinted windshields or for night driving. Somepolarized lenses may present viewing problemswhen reading liquid crystal displays. Sometinted lenses may absorb certain wavelengths ofvisual displays or signs, rendering themunreadable.6.2.4.5 Photochromic LensesPhotochromic lenses darken when exposed to,and fade when removed from, ultravioletradiation or sunlight. They are frequently usedto provide comfortable vision for a wide range

AMERICAN NAT10NAL STANDARD Z87.1-200

of ambient illumination. They should be usedwith care where the wearer passes fromoutdoors to indoors in the course of the job.Photochromic lenses that do not meet thetransmittance requirements of table 1 and theswitching index requirements of table 3 are notsuitable for protection from direct exposure tohigh radiance sources (e.g., welding arcs andunshielded high intensity lamps). Photochromiclenses that do not meet the switching indexrequirements in table 3 are not automaticdarkening welding filters. Photochromic lensesshall be used only after a complete hazardassessment and at the discretion of the personresponsible for the selection of protectors, (Seethe Selection Chart, Annex I - Attached at theend of the standard.)6.2.4.6 Protection from Low RadianceSources of Ultraviolet and VisibleRadiation

Some lenses that comply with the transmittancerequirements of table 2, but not with all of therequirements of table 1 can provide sufficientultraviolet attenuation to be used for protectionfrom direct exposure to ultraviolet sources oflow radiance and from indirect exposure (i.e.,scattered radiation) to properly shieldedultraviolet sources of high radiance. Lenses thathave some attenuation of visible light may alsobe suitable for protection from scattered lightfrom properly shielded high radiance soilrces ofvisible light, (See Selection Chart, Annex I -Attached at the end of the standard.)6.2.5 Fitting the DeviceCareful consideration should be given tocomfort and fit. Protectors that fit poorly willnot afford the protection for which they weredesigned. Protectors should be fitted byqualified personnel. Continued wearing ofprotectors is more likely when they fit thewearer comfortably. Protectors are generallyavailable in a variety of styles and sizes and careshould be taken to ensure that the right size isselected for a particular person. For devices withadjustable fitting features, adjustments shouldbe made on a regular and individual basis for a

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comfortable fit, which will maintain theprotective device in its proper wearing position.Some protectors may not be compatible withother personal protective equipment when worntogether, such as goggles with faceshields,goggles with respirators and spectacles withgoggles. The end user should carefully matchprotectors with other personal protectiveequipment to provide the protection intended.Because of individual facial characteristics, caremust be exercised in fitting goggles to ensurethat a snug fit around the face is achieved inorder to provide adequate protection.6.2.6 Inspection, Care and MaintenanceWearers shall perform a visual inspection oftheir protectors prior to each use. Protectivedevices that are distorted, broken or excessivelyscratched or pitted are not suitable for use andshall be discarded.Reasonable care shall be taken during the useand storage of protectors so that they are notsubject to unnecessary abuse.Protectors shall be maintained in a usablecondition in accordance with manufacturer sinstructions. When one protector is being usedby more than one person, t is recommended thatit be cleaned and disinfected prior to being usedby a different individual.7 Spectacles7.1 IntroductionSpectacles are protective devices designed toshield the wearer s eyes from certain hazards.Spectacles may be available in basic impact andhigh impact classes. Spectacles may in manycases be used alone. When faceshields orwelding helmets are required, spectacles,goggles, or both shall be worn in conjunctionwith them (see Selection Chart, Annex 1Attached at the end of the standard).

7.2 Spectacle Frame TestSpectacle frame tests are designed to test theability of the frame to retain a lens upon impactand to evaluate the strength of the templesand/or sideshields. For the purpose of thesetests, frames shall be equipped with test lenses.The test lenses for frames designed for nonplano spectacles shall be 2.0 mm, + 0.2mm, -0.0mm (0.079 in, +0.008 in, - 0.0 in) thick. A testlens shall be capable of withstanding thefollowing test criteria without failure. Allspectacle frames shall meet the high mass andhigh velocity impact requirements of 7.2.1 and7.2.2.7.2.1 High Mass ImpactSpectacle frames shall be capable of resisting animpact from a pointed projectile weighing 500 g(17.6 oz) dropped from a height of 127 cm (50.0in). The spectacles shall be tested in accordancewith section 14.1. No piece shall be detachedfrom the inner surface of any frame component,and the test lens shall be retained in the frame.7.2.2 High Velocity ImpactSpectacle frames shall be capable of resistingimpact from a 6.35 mm (0.25 in) diameter steelball traveling at a velocity of 45.7 m/s (150 ft/s).The spectacles shall be tested in accordancewith section 14.2. No contact with the eye of theheadform is permitted as a result of impact. Nopiece shall be detached from the inner surface ofany frame component, and the test lens shall beretained in the frame.7.3 Basic Impact Lens RequirementsBasic impact spectacle lenses shall comply withall subparagraphs of this section.7.3.1 Drop Ball ImpactBasic impact spectacle lenses shall be capableof resisting impact from a 25.4 mm (1 in)diameter steel ball dropped from a height of 27

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cm 50.0 in). The lens shall be tested inaccordance with section 14.4. The lens shall notfracture s a result of this test.Glass lenses shall be individually tested.Statistical sampling is an acceptable means ofdemonstrating compliance for plastic lenses. Anexample of an acceptable plan is inANSI/ASQC Z1.4-1993, Sampling Proceduresand Tables for Inspection by Attributes7.3.2 Minimum ThicknessBasic impact spectacle lenses shall be not lessthan 3.0 mm 0.118 in) thick, except thoselenses having a plus power of 3.00 D or greaterin the most plus meridian in the distance portionof the lens which shall have a minimumthickness no less than 2.5mm 0.098 in).7.3.3 Plastic Lens Penetration TestBasic impact plastic spectacle lenses shall be

. capable of resisting penetration from a weightedprojectile weighing 44.2 gm 1.56 oz) droppedfrom a height of 127 cm 50.0 in) when tested inaccordance with section 14.5. The lens shall notfracture or be pierced through as a result of thistest.7.4 Plano Spectacle Lens Requirements7.4.1 Basic Impact Testing RequirementsPlano lens products designed to meet basicimpact requirements shall comply with section7.3.7.4.2 High Impact TestingRequirements7.4.2.1 Spectacle Product TestsThe spectacle product test is designed to test thecapability of the complete product, bothremovable and non-removable lens products, tomeet the requirements of this standard. Forpurposes of product testing, spectacles shall betested as a complete device.


7.4.2.1.1 High Mass ImpactHigh impact spectacles shall be capable ofresisting an impact from a pointed projectileweighing 500 g 17.6 oz) dropped from a heightof 127 cm 50.0 in). The spectacles shall betested in accordance with section 14.1. Nopiece shall be detached from the inner surface ofany spectacle component and the lens shall beretained in the frame. n addition, the lens shallnot fracture.7.4.2.1.2 High Velocity ImpactHigh impact spectacles shall be capable ofresisting impact from a 6.35 mm 0.25 in)diameter steel ball traveling at a velocity of 45.7m/s 150 ft/s). The spectacles shall be tested inaccordance with section 14.2. No cont ctwiththe eye of the headform is permitted as a resultof impact. No piece shall be detached from theinner surface of any spectacle component andthe lens shall beretained n the frame. n addition, the lens shallnot fracture.7.4.2.1.3 Penetration Test For Plasticlenses only)High impact plano spectacle lenses shall becapable of resisting penetration from a weightedprojectile weighing 44.2 gm 1.56 oz) droppedfrom a height of 127 cm 50.0 in) when tested inaccordance with section 14.5. The lens shall notfracture or be pierced through as a result of thistest. No piece shall be detached from the innersurface of any spectacle component and the lensshall be retained in the frame.7.4.2.2 ThicknessWhen used in a frame marked Z87-2, the lensesshall be not less than 2.0 mm 0.079 in) thick.7.4.3 Optical RequirementsWhen tested alone, lens/plate shall meet alloptical requirements for plano spectacles.

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7.4.3.1 Optical QualitiesThe lenses shall be free of striae, bubbles, wavesand other visible defects and flaws which wouldimpair their optical quality per the specificationsand test methods in ANSI Z80.1- 1999.7.4.3.2 Prismatic PowerComplete devices shall be tested in accordancewith section 14.9. The prismatic power shallnot exceed 0.50 .6. in any direction. Verticalprism imbalance shall not exceed 0.25 .6. andhorizontal prism imbalance shall not exceed0.25.6. Base In or 0.50 .6. Base Out .7.4.3.3 Refractive PowerComplete devices shall be tested in accordancewith section 14.10. The refractive power, in anymeridian, shall not exceed 1 0.06 D. Themaximum astigmatism (the absolute differencein power measured in the two extrememeridians) shall not exceed 0.06 D.7.4.3.4 Resolving PowerLenses shall be tested for resolving power inaccordance with section 14.10. All lines in bothorientations of NBS Pattern 20 shall be clearlyresolved.7.4.3.5 HazeClear plano lenses shall exhibit not more than3% haze when tested in accordance with section14.11.7.4.3.6 TransmittancePlano lenses shall comply with the requirementsspecified in table 1 for clear or filter lenses, ortable 2 for special purpose lenses.Measurements shall be taken in accordance withsection 14.12.7.5 Non-Plano Spectacle LensRequirements

7.5.1 Basic ImpactBasic impact non-plano lenses shall satisfy allthe requirements of sections 7.3.1, and 7.3.2.7.5.2 High ImpactHigh impact non-plano spectacle lenses shallcomply with all subparagraphs of this section.7.5.2.1 High Velocity mpactHigh impact non-plano lenses shall be capableof resisting an impact from a 6.35 mm (0.25 in)diameter steel ball traveling at a velocity of 45.7mls (150 ft/s . The lenses shall be tested inaccordance with section 14.3. No piece shall bedetached from the inner sUlface of the lens. Inaddition, the lens shall not fracture.7.5.2.2 Minimum ThicknessHigh impact non-plano lenses shall be not lessthan 2.0 mm thick. This requirement is inrecognition of the thickness needed to maximizelens retention in the frame in a high velocityimpact.7.5.3 Optical QualitiesNon-plano spectacle lenses shall comply withthe optical quality requirements of ANSI Z80.1-1999.7.5.4 TransmittanceNon-plano lenses shall comply with therequirements specified in table 1 for clear lensesor table 2 for special purpose lenses.Measurements shall be taken in accordance withsection 14.12.7.6 FlammabilityThe front, temple, lens and removablesideshields shall be tested in accordance withsection 14.6. The material shall not burn at arate greater than 76 mm 3 in) per minute.

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KSAssume that manufacturer W makes a lenswhich meets the table 1 requirements of a shade2.5 filter and meets high impact testingrequirements. That lens would be marked asfollows:

W+2.SAssume that manufacturer Y makes a clearlens, which meets table 1 and high impacttesting requirements. That lens would bemarked as follows:

7.10.3 Marking for products with Nonremovable LensesSpectacles with non-removable lenses shallrequire only one marking. This marking may beplaced on the front or one of the temples andshall consist of the manufacturer's identifyingmark or symbol, Z87 indicating compliancewith this standard, a shade number if applicableand a + indicating that it meets the highimpact testing requirements.8 Goggles8.1 IntroductionGoggles are protective devices intended to fitthe face immediately surrounding the eyes inorder to shield the eyes from a variety ofhazards. While goggles may be used alone, theymay also be used in conjunction with otherprotectors.8.2 Impact Testing Requirements8.2.1 Goggle Frame TestsFor the purpose of these tests, goggle framesshall be equipped with test lenses. A test lensshall be capable of withstanding the specifiedtest criteria without failure.

8.2.1.1 High Mass ImpactGoggle frames shall be capable of resisting animpact from a pointed projectile weighing 500 g(17.6 oz) dropped from a height of 127 cm (50.0in). The goggle shall be tested in accordancewith section 14.1. No piece shall be detachedfrom the inner surface of any goggle componentand the lens shall be retained in the frame. I fthe goggle uses only one lens, then it shall notseparate from the frame along more than 25% ofits periphery.8.2.1.2 High Velocity ImpactGoggle frames shall be capable of resistingimpact from a 6.35 mm (0.25 in) diameter steelball traveling at a velocity of76.2 m/s (250 ft/s).The goggles shall be tested in accordance withsection 14.2. No contact with the eye of theheadform is permitted as a result of impact. Nopiece shall be detached from the inner surface ofany goggle component and the lens shall beretained in the frame. f the goggle uses onlyone lens, then it shall not separate from theframe along more than 25% of its periphery.8.2.2 Basic Impact Lens TestsFor the purposes of these tests, goggle lensesshall be tested individually.8.2.2.1 Drop Ball ImpactBasic impact goggle lenses shall be capable ofresisting the impacts specified below. The lensshall be tested in accordance with section 14.4.The lens shall not fracture as a result of this test.Round, removable lenses that are clear or thathave shade numbers 1 3 shall be capable ofresisting impact from a 25.4 mm l in) diametersteel ball, weighing 68 g (2.4 oz), dropped froma height of 127 cm (50.0 in). For shades higherthan shade 3, round removable lenses shall becapable of resisting impact from a 22 mm (7/8in) diameter steel ball, weighing 44.2 g (1.56oz), dropped from a height of 1.0 m (39 in).

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~ ~ ~ ~ ~ ~ ~

8.2.2.2 Minimum ThicknessBasic impact goggle lenses shall be not less than3.0 mm (.118 in) thick at their thinnest point,except plastic, which shall be not less than 1.27mm (.050 in) thick at its thinnest point.8.2.2.3 Plastic Lens Penetration TestBasic impact plastic goggle lenses shall becapable of resisting penetration from a weightedprojectile weighing 44.2 g (1.56 oz) droppedfrom a height of 127 cm (50.0 in) when tested inaccordance with section 14.5. The lens shall notfracture or be pierced through as a result of thistest.

8.3 High Impact Testing Requirements8.3.1 Goggle Product TestsFor purposes of product testing, goggles shall betested as a complete device. Goggles with liftfronts shall be tested for impact resistance andoptical requirements with the lift front in theup position.8.3.1.1 High Mass ImpactHigh impact goggles shall be capable ofresisting an impact from a pointed projectileweighing 500 g (17.6 oz) dropped from a heightof 127 cm (50.0 in). The goggles shall be testedin accordance with section 14.1. No piece shallbe detached from the inner surface of anygoggle component and the lens shall be retainedin the frame. f the goggle uses only one lens,then it shall not separate from the frame alongmore than 25% of its periphery. n addition, thelens shall not fracture.8.3.1.2 High Velocity ImpactHigh impact goggles shall be capable ofresisting impact from a 6.35 mm (0.25 in)diameter steel ball traveling at a velocity of 76.2m/s (250 ft/s). The goggles shall be tested inaccordance with section 14.2. No contact withthe eye of the headform is permitted as a resultof impact. No piece shall be detached from the

~ ~ ~ ~ ~ ~ ~

AMERICAN NATIONAL STANDARD Z87.I-200

inner surface of any goggle component and thelens shall be retained in the frame. f the goggleuses only one lens, then it shall not separatefrom the frame along more than 25% of itsperiphery. In addition, the lens closest to theeye shall not fracture.8.3.1.3 Penetration TestHigh impact goggle lenses shall be capable ofresisting penetration from a weighted projectileweighing 44.2 gm (1.56 oz) dropped from aheight of 127 cm (50.0 in) when tested inaccordance with section 14.5. The lens closestto the eye shall not fracture or be piercedthrough as a result of this test. No piece shall bedetached from the inner surface of a gogglecomponent and the lens shall be retained in theframe8.4 Optical Requirements for Plano ,-;;:.GoggleLenses . :When tested alone, the lens/plate shall meet alloptical requirements.8.4.1 Optical QualitiesThe lenses shall be free of striae, bubbles, wavesand other visible defects and flaws which wouldimpair their optical quality.8.4.2 Prismatic PowerComplete devices shall be tested in accordancewith section 14.9. The prismatic power shall notexceed 0.25 l in any direction. Vertical prismimbalance shall not exceed 0.125 Ll, andhorizontal prism imbalance shall not exceed0.125 l Base In or 0.50 l Base Out .8A 3 Refractive PowerComplete devices shall be tested in accordancewith section 14.10. The refractive power, in anymeridian, shall not exceed / 0.06 D. Themaximum astigmatism, the absolute differencein power measured in the two extrememeridians, shall not exceed 0.06 D.

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8.4.4 Resolving PowerLenses shall be tested for resolving power inaccordance with section 14.10. All lines in bothorientations of NBS Pattern 20 shall e clearlyresolved.8.4.5 HazeClear plano lenses shall exhibit not more than3 haze when tested in accordance with section14.11.8.4.6 TransmittancePlano lenses shall comply with the requirementsspecified in table 1 for clear lenses or table 2for special purpose lenses. Measurements shallbe taken in accordance with section 14.12.8.5 Optical Requirements for Non-Plano Goggle Performance8.5.1 Optical RequirementsNon-plano lenses shall comply with the opticalrequirements of ANSI Z80. I -1999.8.5.2 TransmittanceNon-plano lenses shall comply with therequirement specified in table 1 for clear orfilter lenses, or table 2 for special purposelenses. Measurements shall be taken inaccordance with section 14.12. Note: Most nonplano lenses do not comply with therequirements of table 1.8.6 FlammabilityThe frame, lens and lens housing or carrier shallbe tested in accordance with section 14.6. Thematerial shall not burn at a rate greater than 76mm 3 in) per minute.8.7 Corrosion ResistanceGoggles shaH be tested in accordance with section14.7. Metal components used in goggles shall becorrosion resistant to the degree that the function

of the goggles shall not be impaired by thecon-osion. Lenses and electrical components areexcluded from these requirements.8.8 CleanabilityGoggles shall be capable of being cleaned inaccordance with section 14.8. The function andmarkings of the goggles shall not be impaired bythe cleaning process.8.9 Ventilation RequirementsWhen goggles are provided with openings toaHow circulation of air, venting shall beconsistent with the intended application of thegoggles.8.9.1 Direct VentilationThe vented portion of a goggle shall be such thatopenings shall exclude spherical objects 1.5 mm(0.059 in) in diameter or larger.8.9.2 Indirect VentilationThe vented portion of a goggle shall be such thatno direct, straight line passage from the exteriorto the interior of the goggle exists.8.10 Transmittance o Non Lens AreasWhen tested in accordance with section 14.12,non-lens areas of welding goggles withremovable lenses shall transmit no more opticalradiation than that permitted by table 1 for shadenumber 8. Non-lens areas of welding goggleswith non-removable lenses shall transmit nomore optical radiation than that of their lens.8.11 Replacement Goggle LensesSince this standard allows for a great variety ofgoggle lens shapes, sizes, and retention systems,compliance with this standard cannot always beassured when replacement lenses are used.Users shall exercise extreme care in theselection and installation of replacement lenses.To ensure compliance with this standardll replacement lenses shall be capable of

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meeting the same performance requirementsas the replaced lenses. Except for 50 mm (1.97in) round and 51 x 108 mm (2.00 x 4.25 in)rectangular lenses, only those replacementlenses designated by the manufacturer to becompatible with a particular goggle model shallbe used as a component of that goggle. Thisinformation shall be supplied with thereplacement lens(es).50 mm (1.97 in) round and 51 x 108 mm (2.00 x 4.25in) rectangular lenses shall have dimensionaltolerances of: Round +/- 0.2 mm (0.008 in) andRectangular / 0.8 mm 0.031 in).8 12 Marking

All markings shall be permanent, legible, andplaced so that interference with the vision of thewearer is minimal. For a summary table ofrequired markings see Annex G.8 12 1 Frame MarkingGoggles, including the frame and lens housing orcarrier, shaH bear the manufacturer's identifyingmark or symbol and shall be marked Z87indicating compliance with this standard.8 12 2 Removable Lens MarkingLenses shaH be marked as follows:Mark IndicationManufacturer Manufacturers mark.Z87

Z87+

Complies with Basic ImpactTesting Requirements of section8.2.2.Complies with High ImpactTesting Requirements of section8.3.

Shade Number Filter lens which complies withtable 1.

S Special Purpose lens, complieswith table 2, but not with table 1.


v Photochromic lens.8 12 2 1 Examples of Lens MarkingAssume that manufacturer K makes a SpecialPurpose lens which meets basic impactrequirements. That lens would be marked asfollows:

KZ87S

Assume that manufacturer W makes a lenswhich meets the table 1 requirements of a shade2.5 filter and meets high impact testingrequirements. That lens would be marked asfollows:

W Z87 2 5Assume that manufacturer Y makes a clearlens which meets table 1 and high impacttestingrequirements. That lens would be marked as.follows:

YZ87

8 12 3 Marking for products with Non-removable LensesGoggles with non-removable lenses shallrequire only one marking. This marking may beplaced on the lens housing or the lens and shallconsist of the manufacturer's identifying mark orsymbol, Z87 indicating compliance with thisstandard, a shade number if applicable and a +indicating that it meets the high impact testingrequirements.9 Faceshields9 1 IntroductionFaceshields are protective devices designed toshield the wearer's face, or portions thereof, inaddition to the eyes, from certain hazards.Faceshields shall be worn only in conjunctionwith spectacles or goggles.

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9.2 Impact Testing Requirements9.2.1 Faceshield Frame/Crown TestsFor the purpose of these tests, faceshield framesor crowns shall be equipped with test windows.A test window shall be capable of withstandingthe specified test criteria without failure.9.2.1.1 High Mass ImpactFaceshield frames or crowns shall be capable ofresisting an impact from a pointed projectileweighing 500 g 17.6 oz) dropped from a heightof 127 cm 50.0 in). The faceshield shall betested in accordance with section 14.1. No pieceshall be detached from the inner surface of anyface shield component and the window shall beretained in the frame.9.2.1.2 High Velocity ImpactFaceshield frames or crowns shall be capable ofresisting impact from a 6.35 mm 0.25 in)diameter steel ball traveling at a velocity of 91.4m/s 300 ft/s). The faceshields shall be tested inaccordance with section 14.2. No contact withthe eye of the headform is permitted as a resultof impact. No piece shall be detached from theinner surface of any face shield component andthe window shall be retained in the frame.9.2.2 Basic Impact Window TestsRemovable windows shall be tested in thedevice in which they are designed to be used.Faceshields with lift-front type devices shall betested for impact resistance with the lift-front inthe up position.9.2.2.1 Drop Ball ImpactBasic impact faceshield windows shall becapable of resisting impact from a 25.4 mm 1in) diameter steel ball dropped from a height of127 cm 50.0 in). The window shall be tested inaccordance with section 14.4. The window shallnot fracture as a result of this test. The windowshall be retained in the frame.

9.2.2.2 Minimum ThicknessAll faceshield windows shall be not less than1.0 mm .039 in) thick at their thinnest point,except glass, which shall be not less than 3.0mm .118 in) thick at its thinnest point.

9.2.2.3 Plastic Window Penetration TestPlastic basic impact faceshield windows shall becapable of resisting penetration from a weightedprojectile weighing 44.2 g 1.56 oz) droppedfrom a height of 27 cm 50.0 in) when tested inaccordance with section 14.5. The windowshall not fracture or be pierced through as aresult of this test. No piece shall be detachedfrom the inner surface of any faceshieldcomponent and the window shall be retained inthe frame.9.3 High Impact Testing Requirements9.3.1 Faceshield Product Testsor purposes of product testing, faceshieldsshall be tested as complete devices.

9.3.1.1 High Mass ImpactHigh impact faceshields shall be capable ofresisting an impact from a pointed projectileweighing 500 g 17.6 oz) dropped from a heightof 127 cm 50.0 in). The faceshield shall betested in accordance with section 14.1. No pieceshall be detached from the inner surface of anyfaceshield component and the window shall beretained in the frame. n addition, the windowshall not fracture.9.3.1.2 High Velocity ImpactHigh impact faceshields shall be capable ofresisting impact from a 6.35 mm 0.25 in)diameter steel ball traveling at a velocity of 91.4m/s 300 ft/s). The faceshields shall be tested inaccordance with section 14.2. No contact withthe eye of the headform is permitted as a resultof impact. No piece shall be detached from theinner surface of any faceshield component and

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the window shall be retained in the frame. Inaddition, the window shall not fracture.9.3.1.3 Penetration TestHigh impact faceshield windows shall becapable of resisting penetration from a weightedprojectile weighing 44.2 gm (1.56 oz) droppedfrom a height of 127 cm (50.0 in) when tested inaccordance with section 14.5. The window shallnot fracture or be pierced through as a result ofthis test. No piece shall be detached from theinner surface of any faceshield component andthe window shall be retained in the frame.9.4 Optical Requirements for PlanoFaceshield WindowsWhen tested alone, the lens/plate shal l meet alloptical requirements for plano faceshieldwindows.9.4.1 Optical QualitiesThe lenses shall be free of striae, bubbles, wavesand other visible defects and flaws which wouldimpair their optical quality.9.4.2 Prismat ic PowerComplete devices shall be tested in accordancewith section 14.9. The prismatic power shall notexceed 0.37 in any direction. Vertical prismimbalance shall not exceed 0.37 andhorizontal prism imbalance shall not exceed0.125 Base In or 0.75 Base Out .9.4.3 Resolving PowerWindows shall be tested for resolving power inaccordance with section 14.10. All lines in bothorientations of NBS Pattern 20 shall be clearlyresolved.9.4.4 HazeClear plano windows shall exhibit not more than3% haze when tested in accordance with section14.11.


9.4.5 TransmittancePlano windows shall comply with therequirements specified in table 1 for clear andfilter windows or table 2 for special purposewindows. Measurements shall be taken inaccordance with section 14.12. Plano windowshaving transmittance values which meet therequirements of the table below shall be markedlight , medium , or dark . Special purpose

windows having other luminous transmittancevalues are allowed, but shall not be markedlight, medium, or dark.

DesignationLightMediumDark

Percent LuminousTransmittance50 /-723 / 414 / 4 .

9.5 Requirements for Wire-ScreenWindows , ,. ,Exposed borders of wire-screen windows andcut-outs in the wire-screen window(combination plastic and wire-screen) shall besuitably bound and otherwise finished in such amanner as to eliminate any sharp, rough, orunfinished edges. Wire-screen windows areexempt from 9.2.2.2 minimum thickness, 9.2.2.3penetration test and 9.4 optical requirements.9.6 FlammabilityThe headgear/adapter, upper and lower crowns,and window shall be tested in accordance withsection 14.6. The material shall not burn at arate greater than 76 mm (3 in) per minute.9.7 Corrosion ResistanceFaceshields shall be tested in accordance withsection 14.7. Metal components used infaceshields shall be corrosion resistant to thedegree that the function of the faceshields shallnot be impaired by the corrosion. Lenses andelectrical components are excluded from theserequirements.

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9 8 CleanabilityFaceshields shall be capable of being cleaned inaccordance with section 14.8. The function andmarkings of the faceshields shall not beimpaired by the cleaning process.9 9 Replacement Faceshield WindowsSince this standard allows for a great variety offaceshield window shapes, sizes, and retentionsystems, compliance with this standard cannotalways be assured when replacement face shieldwindows are used. Users shall exercise extremecare in the selection and installation ofreplacement faceshield windows. o ensurecompliance with this standard all replacementfaceshield windows shall be capable of meetingthe same performance requirements as thereplaced faceshield windows. Only thosereplacement faceshield windows designated bythe faceshield window manufacturer to becompatible with a particular faceshield modelshall be used as a component of that faceshield.This information shall be supplied with thereplacement faceshield window(s).9 10 MarkingAll markings shall be permanent, legible, andplaced so that interference with the vision of thewearer is minimal. For a summary table ofrequired markings see Annex G.9 10 1 Frame/Crown Markinghe faceshield, including the headgear/adapter

and crown, shall bear the manufacturer'sidentifying mark or symbol and shall be markedZ87 indicating compliance with this standard.9 10 2 Window MarkingWindows shall be marked as follows:

Mark IndicationManufacturer Manufacturers mark.Z87

Z87+

Complies with Basic ImpactTesting Requirements, section9.2.2.Complies with High ImpactTesting Requirements, section9.3.

Shade Number: Filter windows, lenses or plates,which comply with table 1.Light

Medium

Dark

S

v

Percent LuminousTransmittance: 50 / 7Percent LuminousTransmittance: 23 +/- 4Percent LuminousTransmittance: 14 / 4Special Purpose windows,comply with table 2, but notwith table 1, and do not fallwithin the luminoustransmittance ranges of light,medium or dark.Photo chromic windows.

9 10 2 1 Examples of Windows MarkingAssume that manufacturer K makes a SpecialPurpose window, which meets basic impactrequirements. That window would be marked asfollows:

KZ8 S

Assume that manufacturer W makes awindow, which meets the table 1 requirementsof a shade 2.5 and meets high impact testingrequirements. That window would be marked asfollows:

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W Z87+ 2.5Assume that manufacturer Y makes a clearwindow which meets table 1 and high impacttesting requirements. That window would bemarked as follows:

Y Z87+Assume that manufacturer A makes a windowwith a 23% luminous transmittance and meetsbasic impact requirements. That window wouldbe marked as follows:

A Z87Medium9.10.3 Marking for products with Nonremovable LensesFaceshields with non-removable lenses shallrequire only one marking. This marking may beplaced on the frame, crown, or window andshall consist of the manufacturer's identifyingmark or symbol, Z87 indicating compliancewith this standard, a shade number if applicableand a + indicating that it meets the highimpact testing requirements.10 Welding Helmets and Handshields10.1 IntroductionWelding helmets and handshields are protectivedevices designed to provide protection for theeyes and face against optical radiation and weldspatter. Welding helmets shall be used only inconjunction with spectades and/or goggles (seeSelection Chart, Annex I - Attached at the endof the standard).10.2 Impact Testing Requirements10.2. Welding Helmet Shell Tes.tsFor the purpose of these tests, the weldinghelmet shall be equipped with a test lens. A testlens shall be capable of withstanding thespecific test criteria without failure.


10.2.1.1 High Mass ImpactThe welding helmet shell shall be capable ofresisting an impact from a pointed projectileweighing 500 g (17.6 oz) dropped from a heightof 127 cm (50.0 in). The welding helmet shallbe tested in accordance with section 14.1. Nopiece shall be detached from the inner surface ofany helmet component and the lens shall beretained in the helmet.10.2.1.2 High Velocity ImpactThe welding helmet shell shall be capable ofresisting impact from a 6.35 mm (0.25 in)diameter steel ball traveling at a velocity of 45.7m/s (150 ft/sec). The welding helmet shall betested in accordance with section 14.2. Nocontact with the eye of the headform ispermitted as a result of impact. No piece shallbe detached from the inner surface of any ,helmet component and the lens shall be retainedin the frame.10.2.2 Basic Impact Lens TestFor the purpose of these tests, welding helmetlenses shall be tested individually.10.2.2.1 Drop Ball ImpactBasic impact welding helmet lenses shall becapable of resisting the impacts specified below.The lens shall be tested in accordance withsection 14.4. The lens shall not fracture as aresult of this test.Removable filter lenses shall be capable ofresisting impact from a 15.9 mm (5/8 in)diameter steel ball, weighing 16 g (0.56 oz),dropped from a height of 1.0 m (39 in). If used,clear lenses, other than cover lenses, shall becapable of resisting impact from a 25.4 mm 1in) diameter steel ball, weighing 68 g (2.4 oz),dropped from a height of 127 cm (50.0 in).10.2.2.2 Plastic Lens Penetration TestBasic impact plastic welding lenses shall becapable of resisting penetration from a weighted

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projectile weighing 44.2 gm (1.56 oz) droppedfrom a height of 127 cm (50.0 in) when tested inaccordance with section 14.5. The lens shall notfracture or be pierced through as a result of thistest.

10 3 High Impact Testing Requirements10 3 1 Welding Helmet Product TestsFor purposes of testing, welding helmets shallbe tested as a complete device. Welding helmetswith lift-fronts shall be tested for impactresistance and optical requirements with the liftfront in the up position.10 3 1 1 High Mass ImpactHigh impact welding helmets shall be capable ofresisting an impact from a pointed projectileweighing 500 g (17.6 oz) dropped from a heightof 127 m (50.0 in). The helmet shall be testedin accordance with section 14.1. No piece shallbe detached fromthe inner surface of any helmet component andthe lens shall be retained in the frame. Inaddition, the lens closest to the eye shall notfracture.10 3 1 2 High Velocity ImpactHigh impact welding helmets shall be capable ofresisting an impact from a 6.35 mm (0.25 in)diameter steel ball traveling at a velocity of 45.7m/s (150 ft/s). The helmet shall be tested inaccordance with section 14.2. No contact withan eye of the headform is permitted as a resultof the impact. No piece shall be detached fromthe inner surface of any helmet component andthe lens shall be retained in the frame. naddition, the lens closest to the eye shall notfracture.10 3 1 3 Penetration TestHigh impact plastic welding helmet lenses shallbe capable of resisting penetration from aprojectile weighing 44.2 g (1.56 oz.) droppedfrom a height of 127 cm (50 in) when tested inaccordance with section 14.5. The lens closest

to the eye shall not fracture or be piercedthrough as a result of this test. No piece shall bedetached from the inner surface of any helmetcomponent and the lens shall be retained in theframe.

10 4 Optical Requirements for PlanoWelding Helmet LensesWhen tested alone, the lens/plate of lift-frontsshall meet all optical requirements for planowelding helmet lenses.10 4 1 Prismatic PowerComplete products shall be tested in accordancewith section 14.9. Requirements for prismcharacteristics shall apply to all clear impactresistant and filter lenses less than shade 9 (lightstate for autodarkening lenses). The prismaticpower shall not exceed 0.50 / . in any direction.Vertical prism imbalance shall not exceed 0.25/ ., and horizontal prism imbalance shall notexceed 0.25 / . Base In or 0.75 / . Base Out .10 4 2 Refractive PowerClear impact resistant lenses and filter lensesless than shade 9 (light state of autodarkeninglenses) shall be tested in accordance withsection 14.10. The refractive power, in anymeridian, shall not exceed / 0.06 D. Themaximum astigmatism, the absolute differencein power measured in the two extrememeridians, shall not exceed 0.06 D.10 4 3 Resolving PowerClear impact resistant lenses and filter lensesless than shade 9 (light state for autodarkeninglenses) shall be tested for resolving power inaccordance with section 14.10. All lines in bothorientations of NBS Pattern 20 shall be clearlyresolved. Lens/plates darker than shade 9 cannotsee the target to resolve the lines.10 4 4 azeClear lenses shall exhibit not more than 3% haze

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when tested in accordance with s e t i ~ n 14.11.10.4.5 TransmittancePlano lenses shall comply with the requirementsspecified in table I or table 2. Measurementsshall be taken in accordance with section 14.12.10.5 Optical Requirements for Non planoWelding Helmet Lenses10.5.1 Optical RequirementsNon-plano helmet lenses shall comply with theoptical requirements of ANSI Z80.1-1999.10.5.2 TransmittanceNon-plano lenses shall comply with therequirements specified in either table 1 for clearor filter lenses, or table 2 for special purposelenses. Measurements shall be taken inaccordance with section 14.12. ExplanatoryNote: Most non-plano lenses do not complywith the requirements of table 1. Those thatcannot comply with table 1 would then berequired to comply with table 2).10.6 Flammabilityhe headgear, shell and lens housing or catTier

shall be tested in accordance with section 14.6.he material shall not burn at a rate greater than

76 mm (3 in) per minute.10.7 Corrosion ResistanceWelding helmets shall be tested in accordancewith section 14.7. Metal components used inwelding helmets shall be corrosion res istant tothe degree that the function of the weldinghelmet shall not be impaired by the corrosion.Lenses and electrical components are excludedfrom these requirements.10.8 CleanabilityWelding helmets shall be capable of beingcleaned in accordance with section 14.8. Thefunction and markings of the welding helmet

AMERICAN NATfONAL STANDARD Z87.1-2bo

shall not be impaired by the cleaning process.10.9 Non Lens Area Transmittance andLight Tightness10.9.1 Transmittance o Non Lens AreasWhen tested in accordance with section 14.12,non-lens areas of welding helmets withremovable lenses shall transmit no more opticalradiation than that permitted by table 1 for shadenumber 14. Non-lens areas of welding helmetswith non-removable lenses shall transmit nomore optical radiation than that of the lens.10.9.2 Light Tightness

All non-lens areas of welding helmets shallprevent the direct penetration of visible light.No direct visible light shall enter between thelens and the lens holder when tested inaccordance with sect ion 14.14. . ,.10.10 Replacement Welding HelmetLensesSince this standard allows for a great variety ofwelding helmet shapes, sizes, and retentionsystems, compliance with this standard cannotalways be assured when replacement lenses areused. Users shall exercise extreme care in theselection and installation of replacement lenses.o ensure compliance with this standard all

replacement lenses shall be capable of meetingthe same performance requirements as thereplaced lenses. Except for 51 x 108 mm 2.00 x4.25 in) or 114 x 133 mm 4.50 x 5.25 in)rectangular lenses, only those replacementlenses designated by the lens manufacturer to becompatible with a particular welding helmetmodel shall be used as a component of thatwelding helmet. This information shall besupplied with the replacement lens es). SeeSection 9.2.2.2 for minimum thicknessrequirements.51 x 108 mm 2.00 x 4.25 in) and 114 x 133 mm4.50 x 5.25 in) rectangular lenses shall have a

dimensional tolerance of: Rectangular / 0.80.031 in).

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~ ~ ~ ~ ~ ~ ~ ~ ~

exception of sections 10.7, CorrosionResistance, and 10.8, Cleanability.10.12.3 UV and R TransmittanceAutomatic darkening welding filter lenses shallbe tested in accordance with section 14.12. Thetest specimen shall meet the requirements forUV and IR transmittance as specified in table 1for its designated dark shade number. Anadjustable shade lens shall meet the table 1requirement for its highest designated darkshade number. The test specimen shall be testedin the dark state, light state and unpowered at atemperature of 23C / 2C 7 AOF / 3.6F).10.12.4 Switching IndexAn automatic darkening welding filter lens shallbe tested in accordance with section 14.13 andshall meet the requirements of table 3 whentested at temperatures of SoC / 2C (23F /3.6F), 23C / 2C 7 AF / 3.6F), andSSOC / 2C (l31F / 3.6F).10.12.5 OcclusionAll but anyone sensor of the automaticdarkening welding filter lenses shall beoccluded with an opaque material. The filtershall then be tested in accordance with section14.13 and, other than in the case of a completefailure to switch, shall meet the requirements oftable 3 when tested at temperatures of SoC /2C (23F / 3.6P), 23C / 2C 73A F /3.6F), and SSOC / 2C (131F / 3.6F). Theunit shall meet these requirements regardless ofwhich sensor or sensors are occluded.10.13 Cover LensesCover lenses are exempt from all requirementsof this standard. Cover lenses do not provideprotection from optical radiation or impact.Cover lenses shall not be marked Z87 .

Respirators


11.1 IntroductionFull facepiece and loose fitting respirators areprotective devices designed to providerespiratory and eye protection from certainhazards. Loose fitting respirators may also offerhead protection against impact and penetration.Note: Where loose fitting respirators are movedfrom the normal position during use, then theyshall be used only in conjunction withspectacles or goggles.11.2 Full Facepiece RespiratorsFor the purposes of product testing, a fullfacepiece respirator shall be tested as a completegoggle and shall meet the requirements ofsections 8.3 through 8.10.11.3 Loose Fitting Respirators

-,iw.;; : ' .

For the purposes of product testing, a loosefitting respirator shall be tested as a completefaceshield and shall meet the requirements ofsections 9.3 through 9.10.11.4 Full Facepiece Welding RespiratorsFor the purposes of product testing, a fullfacepiece welding respirator shall be tested as acomplete welding goggle and shall meet therequirements of sections 8.3 through 8.10. Inaddition, welding respirators using shade 8 orhigher filters shall meet the requirements ofsections lOA through 10.13.11.5 Loose Fitt ing Welding RespiratorFor the purposes of product testing, a loosefitting welding respirator shall be tested as acomplete welding helmet and shall meet therequirements of sections 10.3 through 10.13.2 Transmittance Requirements forClear Lenses, Filter Lenses and AutomaticDarkening Fil ter Lenses

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12 1 Formulae1. Shade Number, S, is related to luminous

transmittance, TL, (expressed as a fraction,not as a percent) by the equation:

7 1S = - Log 1 - 13 TL2. When T A,) is defined as the sp

ANSI-Z87.1.2003

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