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Use of Personal ProtectiveEquipments
Manoj Kr. Ray
SM(F&S)
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PPE
NON-RESPIRATORY
PROTECTION
RESPIRATORY
PROTECTION
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NON-RESPIRATORY PROTECTION
FACE AND EYE PROTECTION
Operation Hazards Recommended
Protector
Burning, cutting, gas
welding
Sparks, harmful rays,
molten metal flying
particles
Welding goggles (Eye-cup type
or plate type tinted lenses)
Chemical handling Splash, acid burns, fumes Clear goggles and/or shield
Chipping Flying particles Clear goggles (chipper)
Electric (arc) welding Spark, intense rays, molten
metal
Welding hood (with tinted
lenses)
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NON-RESPIRATORY PROTECTION
Operation Hazards Recommended Protector
Furnace operations Glare, heat Cobalt glasses, or welding
goggles (tinted lenses)
Grinding Flying particles Clear goggles or faceshield (chipper goggles)
Laboratory Chemical splash, glass
breakage
Clear goggles or face
shield
Machining Flying particles Clear chipper goggles orface shield
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NON-RESPIRATORY PROTECTION
HEAD PROTECTION :
Safety helmets are rigid headgears of different materials designed toprotect the head not only from impact but from flying particles andelectric shock or any combination of the three.
Safety Helmet
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HAND PROTECTION :
Protective gloves are required to be used for protection of the handsagainst the injurious effect of chemicals, heat, heavy material, oil,electricity etc.
Rubber Gloves
PVC GlovesCanvas GlovesElectrical GlovesHeat Resistance GlovesLeather Gloves
Leather Palm Gloves Chemical Resistance Gloves Welding Gloves
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NON-RESPIRATORY PROTECTION
FOOT PROTECTION :
Rubber boots are used to protect against chemical splashes. Safetyshoes are used to protect against heavy weight.
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BODY PROTECTION :
Rubber and PVC aprons : These provideprotection for the body when working with
chemicals, aromatics or solvents.
Leather aprons : These are used to preventburns from flying sparks.
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NON-RESPIRATORY PROTECTION
HEARING PROTECTION :
Any unwanted sound is called noise. The louder the noise, the more it isdamaging. Also the longer the noise exposure, the greater is the damage
to human hearing mechanism. The threshold limit for noise for 8 hoursduration is 90dB.
Ear Plugs :This type of plug is inserted into ear canals and variesconsiderably both in design and material. Materials used are
rubber, soft or hard plastic, foam or cotton.
Ear Muffs :These cup or muff type devices cover the external earto provide an acoustic(Sound) barrier.
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NON-RESPIRATORY PROTECTION
SAFETY HARNESS
All employees must use safety harness to give protection inperforming jobs at elevated locations where adequate
protection against falling is not available. Safety harness with alife line fastened at the back should always be used wheneverone works on an elevated location or enters into the tanks orbins so that he can be easily lifted and brought out.
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Gas Hazards - Respiratory Protection
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Gas Hazards & Respiratory Protection
Objective To Identify the Respiratory hazards
To Understand the Effects of Contaminants onHuman Body
Definitions/Terminology
Selection of Respiratory Protection
Types of Respiratory Protection
Uses and Limitation of Respiratory Protection
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Respiratory Hazards
Respiratory Hazards in Work Environment may contain:
Nucience Dust
Toxic Dust
Metallic Fumes Volatile Organic Compounds
Vapours
Toxic Gases
Oxygen deficient atmosphere
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Oxygen Deficiency
Oxygen content inair Sign and symptoms ofpersons at rest
12% to 14% Respiration deeper, pulse up, co-
ordination poor
10% to 12% Respiration fast & shallow, giddiness,poor judgement, lips blue.
8% to 10% Nausea, vomiting, unconscious-ness,
ashen face.
6% to 8% 8 min-100% fatal, 6 min-50% fatal, 4-5
min
Recovery with treatment.
4% Coma in 40 secs., convulsion, respiration
ceases, death.
Breathable Air as per OSHA : 19.5% to 23.5% of Oxygen
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Material Safety Data Sheets (MSDS)
Material Data Sheet should be refereed for obtaininginformation about health hazards posed by a chemical.
MSDS gives the properties, TLV / STEL / health effects / Firstaid and Spill containment procedures.
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Particulate filter Gas MaskChemical / Canister
Air Purifying
Airline SCBA / SCUBA Escape
Air Supplied
Respiratory Protection
Types of Respiratory Protection Equipment
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Air Purifying respirators
Air purifying equipment contains a face / nosemask with a filter / cartridge to absorb thecontaminant present in the atmosphere.
Air Purifying respirators are classified into:
Particulate Respirators
Gas Masks
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Air Purifying respirators
Particulate Respirators These are used for filtering particulate
contaminants present in the atmosphere.
Contaminants in atmosphere may be:
Non toxic Dust Toxic dust
Metallic fumes
Oil mist / Paint
Two types are available Disposable
Filter Changing
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Air Purifying respirators
Gas Masks - Chemical Cartridge / CanisterRespirators
The gas mask consist of a cartridge or a canister eitherdirectly mounted to or connected through a flexible
tube to a full or half ace mask. Cartridge / canister is filled with chemicals to remove
the contaminants from the air through chemicalreaction.
Duration of the canister depends on: Concentration of the air contaminants
Duration of exposure
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Air Purifying respirators
Limitations of Air Purifying Respirators: Should be used in atmospheres containing
Oxygen atleast 19.5 %
Should not be used for Emergency escape
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Air supplied respirators
Air Line Respirators : It consists of a full face maskconnected to a source of fresh air through a hose. The airmay be supplied to the hose by a blower, portable aircompressor or a battery of compressed air cylinders.
Plant air or oxygen should not be used as a source of
air.Length of hose should not exceed 300 ft.
In IDLH atmospheres airline respirator along with SCBAshould be used.
In confined spaces life line along with retrieving deviceshould be used.
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Air supplied respirators
Self contained Breathing apparatus (SCBA):Consists of:
Compressed cylinder& back plate.
Full face mask
Air supply hose
Pressure regulator
Pressure Gauge
Low pressure alarm
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Air supplied respirators
Escape Set This is for a short duration of 10 Minutesand does not have any warning device.
Self contained under water breathing apparatus isused for under water operations and is similar to
SCBA.
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Ai li d i t
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Air supplied respirators -
Advantages and Limitations
Airline respirators
Length of hose is limited
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Thank You