American Petroleum Institute (API) Sr. No. DESCRIPTION API 1 Test procedure for pressure relieving devices, against various back pressure 525 2 Commercial seat tightness of safety Relief valves with metal to metal seats. 527 3 Electrical apparatus for potentially explosive atmospheres (It covers flame proof enclosure and intrinsic safety) 540 4 Valves inspection and, testing (leak test on soft seated valves) 598 5 Steel gate valves flanged and butt welding ends 600 6 Class 150 corrosion resistant gate and check valves 603 7 Fire test for soft seated quarter turn valves (butterfly, ball) 607 8 Metal ball valves-flanged and butt welding ends 608 9 Lug and wafer type butterfly valves 609 10 Centrifugal pumps for refinery 610 11 Steam turbines general purpose 611 12 Steam turbines special purpose 612 13 Special purpose gear units for refinery service 613 14 Lubrication, shaft sealing and control oil for special application 614 15 Gas turbine for refinery service 616 16 Centrifugal compressors 617 17 Reciprocating compressors 618 18 Rotary type positive displacement compressors 619 19 Low pressure storage tanks 620 20 Monitoring systems for protection of equipment 670 21 Packaged integrally geared centrifugal air compressor 672 22 Positive displacement pumps-Reciprocating 674 23 Positive displacement pumps-controlled volume 675 24 Accelerometer based vibration monitoring system 678 25 Packaged reciprocating plant and instrument air compressor 680 26 Developing a public Awareness program for operators 1162 27 Marking Liquid Petroleum pipeline Facilities 1109 28 Venting, Atmospheric, and Low Pressure storage Tanks 2000
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
American Petroleum Institute (API)
Sr. No. DESCRIPTION API
1 Test procedure for pressure relieving devices, against various back pressure
525
2 Commercial seat tightness of safety Relief valves with metal to metal seats.
527
3 Electrical apparatus for potentially explosive atmospheres (It covers flame proof enclosure and intrinsic safety)
540
4 Valves inspection and, testing (leak test on soft seated valves) 598
5 Steel gate valves flanged and butt welding ends 600
6 Class 150 corrosion resistant gate and check valves 603
7 Fire test for soft seated quarter turn valves (butterfly, ball) 607
8 Metal ball valves-flanged and butt welding ends 608
9 Lug and wafer type butterfly valves 609
10 Centrifugal pumps for refinery 610
11 Steam turbines general purpose 611
12 Steam turbines special purpose 612
13 Special purpose gear units for refinery service 613
14 Lubrication, shaft sealing and control oil for special application 614
15 Gas turbine for refinery service 616
16 Centrifugal compressors 617
17 Reciprocating compressors 618
18 Rotary type positive displacement compressors 619
19 Low pressure storage tanks 620
20 Monitoring systems for protection of equipment 670
21 Packaged integrally geared centrifugal air compressor 672
5Fluid Flow in Closed Conduits: Connections for Pressure Signal Transmissions Between Primary & Secondary Devices
MFC-8M
6Glossary of Terms Used in the Measurement of Fluid Flow in Pipes MFC-11M
7Measurement Of Fluid Flow In Closed Conduit By Means Of Electromagnetic Flowmeters
MFC-16M
8Measurement Of Fluid Flow In Pipes Using Orifice, Nozzle & Venturi Not An ANSI Standard
MFC-3M
9 Measurement Of Fluid Flow In Pipes Using Vortex Flowmeters
MFC-6M
10Measurement Of Fluid Flow Using Small Bore Precision Orifice Meters MFC-14M
11 Measurement of Gas Flow by Turbine Meters
MFC.4M
12Measurement Of Liquid Flow In Closed Conduits By Weighing Method MFC-9M
13Measurement of Liquid Flow in Closed Conduits Using Transit-Time Ultrasonic Flowmeters
MFC.5M
14 Measurement Uncertainty for Fluid Flow in Closed Conduits
MFC.2M
15 Method For Establishing Installation Effects On Flow Meters
MFC-10M
16 Bimetallic Actuated Thermometers B40.3
17 Diaphragm Seals B40.2
18 Pressure Gauges And Gauge Attachments B40.100-1998
19 Pressure Limiter Valves B40.6
20 Snubber B40.5
21 Thermometers, Direct Reading and Remote Reading
B40.200
22 Stainless Steel Pipe B36.19M
23 Welded and Seamless Wrought Steel Pipe B36.10M
24 Graphic Symbols for Heating, Ventilating and Air Conditioning
Y32.2.4
25 Graphic Symbols for Pipe Fittings, Valves and Piping
Y32.2.3
26Graphic Symbols for Process Flow Diagrams in Petroleum and Chemical Industries
Y32.11
Institute of Petroleum (IP)Sr. No. DESCRIPTION IP
1 Automatic tank level gauging 205/71
2 Area classification code for petroleum installation
PART 15
3 Refinery safety code PART 3
4 Large bulk storage and refrigerated LPG PART 9
5 Fire precautions at petroleum refineries & bulk storage installation
Part 19
Indian Boiler Regulation Act (IBR)Sr. No. DESCRIPTION IBR
1 Steam system design pressure
293
Deutsche Industries Norm (DIN)
Sr. No.
DESCRIPTION DIN
1 Industrial Resistance Thermometer Elements 43670
Explosion protection
2 Determination of explosion limits of gases and gas/air mixtures
DIN EN 51649-1 1986-12
3 Explosive atmospheres-explosion prevention and protection-Part:1 Basic concepts and methodology
DIN EN 1127-1 1997-10
4
Potentially explosive atmospheres-Explosion prevention and protection-Part1:Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres: Trilingual version pr EN 13237-1:1998
DIN EN 13237 1998-07
5Explosion protection systems; part1:determination of explosion indices of combustible dust in air (ISO 6184-2:1985)
DIN EN 26184-1 1991-06
6Explosion protection systems; part 2:determination of explosion indices of combustible gases in air (ISO 6184-2:1985)
DIN EN 26184-2 1991-06
7Explosion protection systems; part3: determination of explosion indices of fuel/air mixtures other than dust/air and gas/air mixtures (ISO 6184-3:1985 )
DIN EN 26184-3 1991-06
8Explosion protection systems: part4: determination of efficacy of explosion suppression systems (ISO 6184-4:1985)
DIN EN 26184-4 1991-06
Protection against electric shock
9 Hand tools for live working at voltages up to 1000V-Extension bars (with male /female driving squares)
DIN 7434 1998-08
10 Hand tools for live working at voltages up to 1000 V-Tee handle square drives
DIN 7436 1998-08
11 Hand tools for live working at voltages up to 1000 V-Screwdrivers for slotted head screws
DIN 7437 1998-08
12 Hand tools for live working at voltages up to 1000 V -Screwdrivers for cross-recessed head screws
DIN 7438 1998-08
13 Hand tools for live working at voltages up to 1000 V-Keys with handle for hexagon socket screws
DIN 7439 1998-08
14 Hand tools for live working at voltages up to 1000 V-Socket single hexagon tee wrenches
DIN 7440 1998-08
15 Hand tools for live working at voltages up to 1000 V- spin type socket wrenches
DIN 7445 1998-08
16 Hand tools for live working at voltages up to 1000 V-Single headed, open-ended engineers wrenches
DIN 7446 1998-08
17 Hand tools for live working at voltages up to 1000 V-Single-end, deep offset box wrenches
DIN 7447 1998-08
18 Hand tools for live working at voltages up to 1000 V-Square drive hexagon socket wrenches
DIN 7448 1998-08
19 Hand tools for live working at voltages up to 1000 V-Ratchet handles
DIN 7449 1998-08
20 Electrically insulating footwear for use on low voltage installations
DIN 50321 1998-08
21Protection against electric shock-Draft IEC 60990, Edition 2: Methods of measurement of touch current and protective conductor current (IEC 74/518/FDIS:1999)
DIN EN 60990 1999-09
Radiation protection
22 Protective gloves against ionizing radiation and radioactive contamination
DIN EN 421 1994-06
23Protective clothing against radioactive contamination -Part 1: Requirements and test methods for ventilated protective clothing against particular radioactive contamination
DIN EN 1073-1 1998-02
24 Screens for laser working places-Safety requirement and testing
DIN EN 12254 1999-02
Alarm and warning systems
25 Guide for the selection , installation, use and maintenance of apparatus for the detection and measurement of combustible gases
DIN EN 50073 1996-11
26 Alarm systems-Access control systems for use in security applications-Part2-1: General requirements for components
DIN EN 50133-2-1 1998-09
27 Alarm systems-Access control systems for use in security DIN EN 50133-7 1998-09
applications-Part7: Application guidelines
28 Alarm systems-Social alarm systems-Part 1: System requirements
30 Alarm systems-Social alarm systems-Part3:Local unit and controller
DIN EN 50134-3 1995-11
31Alarm systems-Alarm transmission systems and equipment-Part1-1:General requirements for alarm transmission systems
DIN EN 50136-1-1 1996-07
32Alarm systems-Alarm transmission systems and equipment-Part 1-2:Requirements for systems using dedicated alarm paths
DIN EN 50136-1-2 1996-07
33
Alarm systems-Alarm transmission systems and equipment-Part1-3:Requirements for systems with digital communicators using the public switched telephone network
DIN EN 50136-1-3 1996-07
34
Alarm systems-Alarm transmission systems and equipment-Part 1-4:Requirements for systems with voice communicators using the public switched telephone network
DIN EN 50136-1-4 1996-07
35Alarm systems-Alarm transmission systems and equipment-Part2-1:General requirements for alarm transmission equipment
DIN EN 50136-2-1 1997-02
36Alarm systems-Alarm transmission systems and equipment-Part 2-2:Requirements for equipment used in systems using dedicated alarm paths
DIN EN 50136-2-2 1997-02
37
Alarm systems-Alarm transmission systems and equipment-Part2-3:Requirements for equipment used in systems with digital communicators using the public switched telephone network
DIN EN 50136-2-3 1997-02
38
Alarm systems-Alarm transmission systems and equipment-part2-4:Requirements for equipment used in systems with voice communicators using the public switched telephone network
DIN EN 50136-2-4 1997-02
39 Alarm transmission systems; part4:annuciation equipment DIN EN 50136-4 1994-03
40 Electrical apparatus for the detection of combustible gases in domestic premises
DIN EN 50194 1996-01
41Specification for open path apparatus for the detection of gases and vapours-Part1:General requirements and test methods
DIN EN 50241-1 1996-11
42Specification for open path apparatus for the detection of gases and vapours-Part2:Performance requirements for apparatus for the detection of combustible gases
DIN EN 50241-2 1996-11
43 Guide for selection, installation, use and maintenance of domestic combustible gas detectors
DIN EN 50244 1998-07
44
Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen-Requirements and tests for detectors using software and/or digital technologies
DIN EN 50271 1998-08
45 Electrical apparatus for the detection of carbon monoxide in domestic
DIN EN 50291 1998-06
46Electrical apparatus for the detection of carbon monoxide in domestic premises-Guide on the selection, installation ,use and maintenance
DIN EN 50292 1998-06
Deutsche Industries Norm (DIN)
Sr. No
DESCRIPTION DIN
Metrology and measurement in general
47 Rounding Radii DIN 250 1972-07
48 Preferred Numbers and Series of Preferred Numbers; Basic Values, Calculated Values, Rounded Values
DIN 323-1 1974-08
49 Preferred Numbers and Series of Preferred Numbers; Introduction
DIN 323-2 1974-11
50 Basic concepts in metrology-General concepts DIN 1319-1 1995-01
51 Basic concepts in metrology; Terminology relating to the use of measuring instruments
DIN 1319-2 1980-01
52 Basic concepts in metrology-Evaluating measurements of a single measurand and expression of uncertainty
DIN 1319-3 1996-05
53 Basic principles for the design of line scales and pointers
DIN 43790 1991-01
54Accuracy (trueness and precision) of measurement methods and results-part1:Generral principles and definitions (ISO 5725-1:1994)
DIN ISO 5725-1 1997-11
55 Accuracy (trueness and precision) of measurement methods and results; a basic method for the determination of repeatability and reproducibility of a
DIN ISO 5725-2 1991-02
standard measurement method; identical with ISO/DIS 5725-2:1990
56Accuracy (trueness and precision) of measurement methods and results;part3: intermediate measures on the precision of a test method
DIN ISO 5725-3 1991-07
57
Accuracy (trueness and precision) of measurement methods and results; basic methods for estimating the trueness of a test method; identical with ISO/DIS 5725-4 :1990
DIN ISO 5725-4 1991-02
58
Accuracy (trueness and precision) of measurement methods and results-Part 5: Alternative methods for the determination of the precision of a standard measurement method (ISO/DIS 5725-5:1996)
DIN ISO 5725-5 1996-09
59Accuracy (trueness and precision) of measurement methods and results; practical applications; identical with ISO/DIS 5725-6:1990
DIN ISO 5725-6 1991-02
60Quality assurance requirements for measuring equipment;part1:metrological confirmation system for measuring equipment; identical with ISO 10012-1:1992
DIN ISO 10012-1 1992-08
61 Capability of detection-Part 2: Methodology in the linear calibration case (ISO/DIS 11843-2:1998)
DIN ISO 11843-2 1998-08
Linear and angular measurements in general
62 Terminology used in dimensional metrology; Units, activities, checking instruments; Metrological concepts
DIN 2257-1 1982-11
63 Definitions of length Verification Practice: Measurement Errors and Uncertainties
DIN 2257-2 1974-08
Limits and fits
64 ISO Systems of Limits and Fits; Testing of Work piece Elements with Cylindrical and Parallel Mating Surfaces
DIN 7150-2 1977-08
65 Recommended Selection of Fits; Tolerance Zones, Allowances, Fit Tolerances
DIN 7157 1966-01
66Relationship between tolerances of size, form, and parallelism; envelope requirement without individual indication on the drawing
DIN 7167 1987-01
67General tolerances for linear and angular dimensions and geometrical tolerances (not to be used for new designs)
DIN 7168 1991-04
68Tolerances and limit deviations for sizes above 3150mm up to 10000mm; principles standard tolerances and limit deviations
DIN 7172 1999-04
69 GPS-Geometrical tolerancing-Positional tolerancing (ISO 5458:1998)
DIN EN ISO 5458 1999-02
70
Geometrical product specifications (GPS)-inspection by measurement of work-pieces and measuring equipment -Part 1: Decision rules for proving conformance or non-conformance with specifications (ISO 14253-1:1998)
DIN EN ISO 14253-1 1993-03
Measuring instruments
71 ISO metric trapezoidal screw threads, gauging of external and internal threads, gauge dimensions and
DIN 103-9 1985-02
design features
72 Metric taper external and mating internal parallel screw thread-Gauges and gauging
DIN 158-2 1997-06
73 Vernier-capllipers;requirements and testing DIN 862 1988-12
74 Micrometers-Standard design external micrometers-Concepts, requirements and testing
DIN 863-1 1994-04
75 Micrometers-Fixed micrometers and depth micrometers-Concepts, requirements and testing
DIN 863-2 1999-04
76 Micrometers-Special design external micrometers-Design, requirements and testing
DIN 863-3 1994-04
77 Micrometers-Internal micrometers-Concepts, requirements and testing
DIN 863-4 1994-04
78 Graduated steel rules; Rules for verification purposes, Requirements
106 Circular Levels; Terms,Construction DIN 2277 1967-11
107 Dirt Grooves on Screw Thread Gauges for screw Threads with ISO Metric Profile
DIN 2278 1967-12
108 GO and NOT GO screw plug gauges for ISO metric screw threads from 1mm up to 40 mm nominal diameter
DIN 2280 1989-11
109GO workshop screw plug gauges, check plugs and setting plugs for ISO metric screw threads over 1 mm up to 40 mm nominal diameter
DIN 2281-1 1989-11
110GO workshop screw plug gauges, check plugs and setting plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter
DIN 2281-2 1989-11
111
GO workshop screw plug gauges, check plugs and setting plugs for ISO metric screw threads over 40 mm up to 250 mm nominal diameter for use in precision engineering
DIN 2281-3 1989-11
112
GO screw gauging members for workshop plug gauges, check plugs and setting plugs for ISO metric screw threads over 1 mm up to 40 mm nominal diameter
DIN 2282-1 1989-11
113
GO screw gauging members for workshop plug gauges, check plugs and setting plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter
DIN 2282-2 1989-11
114
GO screw gauging members for workshop plug gauges, check plugs and setting plugs for ISO metric screw threads over 40 mm up to 250 mm nominal diameter for use in precision engineering
DIN 2282-3 1989-11
115 NOT GO workshop screw plug gauges, check plugs and setting plugs for ISO metric screw threads over1 mm up to 40 mm nominal diameter
DIN 2283-1 1989-11
116 NOT GO workshop screw plug gauges, check plugs and DIN 2283-2 1989-11
setting plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter
117NOT GO workshop screw plug gauges and check plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter for use in precision engineering
DIN 2283-3 1989-11
118
NOT GO screw gauging members for workshop plug gauges, check plugs and setting plugs for ISO metric screw threads from 1 mm up to 40 mm nominal diameter
DIN 2284-1 1989-11
119
NOT GO screw gauging members for workshop plug gauges, check plugs and setting plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter
DIN 2284-2 1989-11
120
NOT GO screw gauging members for workshop plug gauges, and check plugs and setting plugs for ISO metric screw threads over 40 mm up to 200 mm nominal diameter
DIN 2284-3 1989-11
121General purpose GO screw ring gauges for ISO metric screw threads from 1mm up to 200 mm nominal diameter
DIN 2285-1 1989-11
122Go screw ring gauges for ISO metric screw threads over 50 mm to 200 mm nominal diameter for use in precision engineering
DIN 2285-2 1989-11
123General purpose NOT GO screw ring gauges for ISO metric screw threads with nominal diameter from 1mm up to 200 mm
DIN 2299-1 1995-01
124NOT Go screw ring gauges for ISO metric screw threads with nominal diameters from 50 mm to 200 mm for use in precision engineering
DIN 2299-2 1995-01
125 Pipe threads for tubes and fittings; sizes for taper screw limit plug gauges for parallel internal threads
DIN 2999-4 1986-11
126Whitworth pipe Threads for Tubes and Fittings; Cylindrical Screw Limit Ring Gauges for Gauging Conical External Threads , Sizes
DIN 2999-5 1973-08
127 Whitworth pipe Threads for Tubes and Fittings; Conical Screw Check plugs, Sizes
DIN 2999-6 1975-01
128 Measuring Tapes pf Steel with Winder Frames or Winder Cases
DIN 6403 1976-02
129 Plain workshop and Inspection Gauges; Manufacturing Tolerances And Permissible Wear
DIN 7162 1965-12
130Workshop Gap Gauges and Check Gauges for ISO Fit Sizes from 1 to 500 mm Nominal Dimensions Nominal Dimensions and Manufacturing Tolerances
DIN 7163 1966-08
132
Workshop Plug Gauges And Spherical End Measuring Rods for ISO Fit Dimensions from 1 to 500 mm Nominal Dimensions; Gauge Dimensions and Manufacturing Tolerances
DIN 7164 1966-08
133 Non-contact opto-electronic length measurement-Concepts, requirements and testing
DIN 32877 1992-02
134 Steel Conduit Thread; Thermal Gauges, "Go" and "Not DIN 40431-1 1970-11
136 Tensile testing pf metallic materials-Verification of extensometers used in uni-axial testing
DIN EN 10002-4 1995-01
137Tensile testing of metallic materials Part4:-Verification of extensometers used in uni-axial testing-Examples for extensometers and their verification
DIN EN 1002-4 Suppl1 1995-01
138GPS-Surface texture: profile method-Nominal characteristics of contact (stylus) instruments (ISO 3274:1996)
DIN EN ISO 3274 1998-04
139 Geometrical product specification (GPS)-Length standards-Gauge blocks (ISO 3650:1998)
DIN EN ISO 3650 1999-02
140
Dimensional measuring instruments-Requirements on inspection equipment in dimensional metrology-Limits of permissible error of measuring instruments (ISO/CD 14978:1995)
142 Mass, as weighed value, force, weight force ,weight, load;concepts
DIN 1305 1988-01
143 Viscometry; Determination of Viscosity; General Principles DIN 51550 1978-12
144Viscometry-Determination of kinematic viscosity using the Ubbelohde viscometer-Apparatus and measurement procedures
DIN 51562-1 1990-01
145 Viscometry;Determination of kinematic viscosity using the Ubbelohde micro viscometer
DIN 51562-2 1988-12
146Viscometry; Determination of kinematic viscosity using the Ubbelohde viscometer; viscosity relative increment at short flow times
DIN 51562-3 1985-05
147Viscometry-Determination of kinematic viscosity using the Ubbelohde viscometer-calibration of viscometers and determination of uncertainty of measurement
DIN 51562-4 1999-01
148 Viscometry; Measurement of Viscosity using the hoeppler Falling-Ball Viscometer
DIN 53015 1978-09
149 Viscometry; Measurement of the Dynamic Viscosity of Newtonian Fluids with Rotational Viscometers; Principles
DIN 53018-1 1976-03
150
Viscometry; Measurement of the Dynamic Viscosity of Newtonian Fluids with Rotational Viscometers; Sources of Errors and Corrections concerning Cylinder, Rotation Viscometers
DIN 53018-2 1976-03
151Viscometry; Determination of viscosities and flow curves using standard design rotary viscometers with a standard geometry measuring system
DIN 53019-1 1980-05
152 Oscillation-type density meters-Part1:Laboratory instruments(ISO 15212-1:1998)
DIN EN ISO 15212-1 1999-06
Measurement of time,velocity,acceleration,angular velocity
153 Chronometric Terms;Indication.Rate DIN 8236-1 1970-03
154 Chronometric Terms; Frequency ,Period DIN 8236-2 1971-01
155 Chronometric Terms; Coefficients of the Rate DIN 8236-3 1971-07
Measurement of force, weight and pressure
156 Mass, as weighed value,force,weight force,weight,load;concepts
DIN 1305 1988-01
157 Control pressure gauges DIN 16085 1995-05
158 Pressure gauges-Vocabulary DIN EN 472 1994-11
159 Gas welding equipment-Pressure gauges used in Welding, cutting and allied processes
DIN EN 562 1994-11
160 Pressure gauges-Part1:Bourdon tube pressure gauges-Dimensions, metrology,requirements and testing
DIN EN 837-1 1997-02
161 Pressure gauges-Part2: Selection and installation recommendations for pressure gauges
DIN EN 837-2 1997-05
162 Pressure gauges-Part3:Diaphragm and capsule pressure gauges; dimensions, metrology, requirements and testing
DIN EN 837-3 1997-02
163Pressure gauges-Apparatus for inspection of pressure and/or inflation of tyres for motor vehicles-Metrology, requirements and testing
DIN EN 12645 1998-11
Measurement of fluid flow in general
164Flow measurement, mating dimensions and application of shut-off valves for differential pressure transducers and differential pressure piping
DIN 192-8 1988-08
Deutsche Industries Norm (DIN)
Sr. No
DESCRIPTION DIN
Flow in closed conduits
165 Methods for measurement of fluid flow: differential pressure piping for flow measurement devices
DIN 19210 1984-07
166 Flow-metering devices for connection to terminal units of medical gas pipeline systems
DIN EN 13220 1999-01
167 Measurement of liquid flow in closed conduits; weighing method (ISO 4185:1980)
DIN EN 24185 1993-08
168Measurement of fluid flow in closed conduits; methods of evaluating the performance of electromagnetic flow-meters for liquids (ISO 9104:1991)
DIN EN ISO 29104 1993-08
169 Measurement of liquid flow in closed conduits-Method using electromagnetic flow flowmeters (ISO 6817:1992)
DIN EN ISO 6817 1995-11
170 Measurement of liquid flow in closed conduits-Method by collection of the liquid in a volumetric tank (ISO 8316:1995)
DIN EN ISO 8316 1995-11
171 Measurement of gas flow by means of critical flow-Venturi nozzles (ISO 9300:1990)
DIN EN ISO 9300 1995-04
172 Measurement of conductive liquid flow in closed conduits- DIN ISO 13359 1998-09
Flanged electromagnetic flowmeters-Overall length (ISO 13359:1998)
Flow in open channels
173 Measurement of flow of waste water in open channels and gravity conduits; general information
DIN 19559-1 1983-07
174 Measurement of flow of waste water in open channel and gravity conduits; venturi flumes
DIN 19559-2 1983-07
Acoustic measurements and noise abatement in general
175 Standard Tuning; Standard Musical Pitch DIN 1317-1 1957-03
176 Standard Tuning; Tuning-fork DIN 1317-2 1959-08
177 Standard Tuning; Tuning Frequency of Organs DIN 1317-3 1962-06
178 Acoustic; measurement of sound absorption in reverberation room (ISO 354:1985)
DIN EN 20354 1993-07
179Measurement of sound absorption in reverberation room-Amendment 1:Test specimen mounting for sound absorption tests(ISO 354:195/AMD 1:1997)
DIN EN 20354/A1 1997-10
180
Noise emitted by machinery and equipment-Measurement of emission sound power levels at a work station and at other positions-Engineering method in an essentially free field over a reflecting plane (ISO 11 201:1995)
DIN EN ISO 11201 1996-07
181Noise emitted by machinery and equipment-Measurement of emission sound power levels at a work station and at other specified positions-Survey method in situ(ISO 11 202:1995)
DIN EN ISO 11202 1996-07
182
Noise emitted by machinery and equipment-Determination of emission sound power levels at a work station and at other specified positions from sound power level (ISO 11 203:1995)
DIN EN ISO 11203 1996-07
183
Noise emitted by machinery and equipment-Determination of emission sound power levels at a work station and at other specified positions -Method requiring environmental corrections (ISO 11 204:1995)
DIN EN ISO 11204 1996-07
184Determination of sound insulation performance of enclosures-Measurements under a laboratory conditions (for declaration purposes) (ISO 11546-1:1995)
DIN EN ISO11546-1 1996-06
185Determination of sound insulation performance of enclosures-Measurements in-situ (for acceptance and verification purposes) (ISO 11546-2:1995)
DIN EN ISO 11546-2 1996-06
186Acoustics-Recommended practice for the design of low-noise machinery and equipment-Part1:Planning (ISO /TR 11688-1:1995)
DIN EN ISO 11688-1 1998-10
187 Acoustics-Procedure for the comparison of noise emission-data for machinery and equipment (ISO 11689:1996)
DIN EN ISO 11689 1997-03
189Recommended practice for the design of low-noise workplaces containing machinery-Part1:Noise control strategies (ISO 11690-1:1996)
DIN EN ISO 11690-1 1997-02
190Recommended practice for the design of low-noise workplaces containing machinery-Part2:Noise control strategies (ISO 11690-2:1996)
DIN EN ISO 11690-2 1997-02
191 Recommended practice for the design of low-noise DIN EN ISO 11690-3
workplaces containing machinery-Part3: Sound propagation and noise prediction in workrooms (ISO/TR 11690-3:1997)
1999-01
191Noise emitted by machinery and equipment-Rules for the drafting and presentation of a noise test code (ISO 12001:1996)
DIN EN ISO 12001 1997-07
Vibrations, shock and vibration measurement
192 (Mechanical) vibration, oscillations and vibration systems-Vibration and shock-Vocabulary
DIN 1311 Suppl1 1999-11
193 Mechanical vibration and shock measurementPart1: Measuring equipment
DIN 45669-1 1995-06
194 Mechanical vibration and shock measurementPart2: Measurement procedure
DIN 45669-2 1995-06
195 Measurement of exposure to occupational vibration; vibrometers;requirements and testing
DIN 45671-1 1990-09
196 Measurement of occupational vibration; measurement method
DIN 45671-2 1987-09
197 Testing of mobile machinery in order to determine the whole-body vibration emission value-General
DIN EN 1032 1996-11
198 Testing of mobile machinery in order to determine the whole-body vibration emission value-General-Amendment 1
DIN EN 1032/A1 1998-12
199 Vibration isolation of machinery-Information for the application of source isolation
DIN EN 1299 1997-05
200 Mechanical vibration -Declaration and verification of vibration emission values
DIN EN 12096 1997-09
201 Laboratory method for evaluating vehicle seat vibration-Basic requirements (ISO 10326-1:1992)
DIN EN 30326-1 1994-06
202 Mechanical vibration and shock-Mechanical mounting of accelerometers (ISO 5348:1998)
DIN ISO 5348 1999-07
203Mechanical vibration of non-reciprocating machines-Measurements on rotating shafts and evaluation criteria-Part1: General guidelines (ISO 7919-1:1996)
DIN ISO 7919-1 1997-08
204
Mechanical vibration of non-reciprocating machines-Measurements on rotating shafts and evaluation criteria-Part2: Large land-based steam turbine generator sets (ISO 7919-2:1996)
DIN ISO 7919-2 1997-08
205Mechanical vibration of non-reciprocating machines-Measurements on rotating shafts and evaluation criteria-Part3: Coupled industrial machines (ISO 7919-3:1996)
DIN ISO 7919-3 1997-08
206Reciprocating internal combustion engine driven alternating current generating sets-Part 9:Measurement and evaluation of mechanical vibrations (ISO 8528-9:1995)
DIN ISO 8528-9 1990-01
207 Evaluation of machine vibration by measurements on non-rotating parts-Part1: General guidelines (ISO 10816-1:1995)
DIN ISO 10816-1 1997-08
208Evaluation of machine vibration by measurements on non-rotating parts-Part2:Large land-based steam turbine generator sets in excess of 50 MW (ISO 10816-2:1996)
DIN ISO 10816-2 1997-08
209 Evaluation of machine vibration by measurements on non-rotating parts-Part3: Industrial machines with nominal power above 15kW and nominal speeds between 120r/min and
DIN ISO 10816-3 1998-12
15000r/min when measured in-situ (ISO 10816-3:1998)
210Evaluation of machine vibration by measurements on non-rotating parts-Part4: Gas turbine driven sets excluding aircraft derivative (ISO 10816-4:1998)
DIN ISO 10816-4 1998-12
211Evaluation of machine vibration by measurements on non-rotating parts-Part6: Reciprocating machines with power rating above 1oo kW (ISO 10816-6:1995)
DIN ISO 10816-6 1997-08
Deutsche Industries Norm (DIN)
Sr. No DESCRIPTION DIN
Optical measuring instruments
212 Calibration of optical spectrum analyzers (IEC 86/149/CD:1999)
DIN EN 62129 1999-11
Temperature-measuring instruments
213Electrical laboratory equipment: adjustable liquid-in glass contact thermometers and control devices; general and safety requirements, testing
DIN 12878 1980-12
214Industrial straight stem liquid-in-glass thermometers with round case, of nominal size 160: dimensions and nominal ranges
DIN 16167 1991-09
215 Industrial 90° stem liquid-in-glass thermometers with round case, of nominal size 160: dimensions and nominal ranges
DIN 16168 1991-09
216Industrial straight stem liquid-in-glass thermometers with round case, of nominal size 250: dimensions and nominal ranges
DIN 16174 1991-09
217Industrial 90° angle stem liquid-in-glass thermometers with round case, of nominal size 250: dimensions and nominal ranges
DIN 16175 1991-09
218Industrial 135° angle stem liquid-in-glass thermometers with round case, of nominal size 250: dimensions and nominal range
DIN 16176 1991-09
219Industrial straight stem liquid-in-glass thermometers with V-shaped case, of nominal size 110: dimensions and nominal range
DIN 16181 1991-09
220Industrial 90° stem liquid-in-glass thermometers with V-shaped case, of nominal size 110: dimensions and nominal range
DIN 16182 1991-09
221Industrial straight stem liquid-in-glass thermometers with V-shaped case, of nominal size 150: dimensions and nominal ranges
DIN 16185 1991-09
222Industrial 90° stem liquid-in-glass thermometers with V-shaped case, of nominal size 150: dimensions and nominal ranges
DIN 16186 1991-09
223Industrial straight stem liquid-in-glass thermometers with V-shaped case, of nominal size 200: dimensions and nominal range
DIN 16189 1991-09
224Industrial 90° stem liquid-in-glass thermometers with V-shaped case, of nominal size 200: dimensions and nominal range
DIN 16190 1991-09
225 Industrial 135° stem liquid-in-glass thermometers with V- DIN 16191 1991-09
shaped case, of nominal size 200: dimensions and nominal ranges
226 Industrial liquid-in-glass thermometers with round or V-shaped case; requirements and testing
DIN 16195 1991-09
227 Filled-system and bimetallic dial thermometers; requirements and testing
DIN 16203 1988-02
228Bimetallic dial themo-meters, accuracy classes 1 and 2, with case diameters of 63,80,100 and 160mm ;dimensions and nominal ranges
DIN 16204 1988-02
229Filled-system dial themo-meters, accuracy classes 1 and 2,with an elastic measuring element and case diameters of 63,80, 100 and 160mm; dimensions and nominal ranges
DIN 16205 1988-02
230
Filled -system remote-sensor dial thermometers, accuracy classes 1 and 2, with case diameters of 60,63,80,100 and 160mm or 72 x72, 96x96,144x144 cases; dimensions and nominal ranges
DIN 16206 1988-02
231 Measurement and control; electrical temperature sensors; thermocouples for thermocouple thermometer
DIN 43732 1986-03
230Measurement and control; electrical temperature sensors; straight thermocouple thermometers without interchangeable sensor units
DIN 43733 1986-03
232Measurement and control; electrical temperature sensors; stop flanges for thermocouple thermometer and resistance thermometer
DIN 43734 1986-03
233 Measurement and control; electrical temperature sensors; Sensors units for thermocouple thermometer
DIN 43735 1986-03
234 Measurement and control; electrical temperature sensors; Sensors units for resistance thermometer
DIN 43762 1986-03
235Measurement and control; electrical temperature sensors; metal protecting tubes for thermometers with inserted sensor units
DIN 43763 1986-03
236 Measurement and control; electrical temperature sensors; straight thermometers with interchangeable sensor units
DIN 43764 1986-03
237 Measurement and control; electrical temperature sensors; threaded-stem thermometers with G 1/2 mounting thread
DIN 43765 1986-03
238 Measurement and control; electrical temperature sensors; threaded-stem thermometers with G 1 mounting thread
DIN 43766 1986-03
239 Measurement and control; electrical temperature sensors; welded-stem thermometers
DIN 43767 1986-03
240 Measurement and control; electrical temperature sensors; thermometers not fitted with protecting tubes
DIN 43769 1986-03
241 Measurement and control; electrical temperature sensors; fast response thermometers
DIN 43771 1989-12
Test conditions and procedures in general
242 Testing of Materials, Structural Components and Equipment; Hot Cabinets; Directions for the Storage of Specimens
DIN 50011-2 1960-05
243Climates and their technical applications; controlled-atmosphere test installations; general terminology and requirement
DIN 50011-11 1982-03
244Artificial climates in technical applications; air temperature as a climatologically quantity in controlled-atmosphere test installations
DIN 50011-12 1987-09
245 Sampling; statistical principles of sampling with cross classification according to two equal-ranked criteria
DIN 53803-3 1984-06
246 Sampling; statistical principles of sampling with cross classification according to two hierarchical criteria
DIN 53803-4 1984-06
247 General criteria for the operation of testing laboratories; identical with EN 45001:1989
DIN EN 45001 1990-05
248 General criteria for the assessment of testing laboratories; identical with EN 45002:1989
DIN EN 45002 1990-05
249 General requirements for the competence of testing and calibrations laboratories (ISO/IES DIS 17025:1998)
DIN ISO/IES 17025 1998-10
Electrical and electronic testing
250 Erection and operation of electrical test equipment DIN EN 50191 1998-05
251Safety requirements for electrical equipment, for measurement control and laboratory use-Part1: General requirements (IES 66/212/CDV:1998)
DIN EN 61010-1 1999-06
252
Safety requirements for electrical equipment, for measurement control and laboratory use-Part2-031:Particular requirements for hand-held probe assemblies for electrical measurement and test (IES 66/186/CDV:1998)
DIN EN 61010-2-031 1999-09
253 Hoses assemblies for oils, fuels, cooling water, air and inert gases, technical specification
VG 95922-3 1994-07
254 Hoses and hose assemblies for refueling and pipelines; age control and preventive maintenance
VG 95924-1 1991-12
255 Hoses and hose assemblies for fluid power service, fuel, coolants and air, age inspection and preventive maintenance
VG 95924 1988-02
Deutsche Industries Norm (DIN)
Sr. No DESCRIPTION DIN
Valves in general
256 End-to-end centre-to-end dimensions of valves; Weld-on valves DIN 3202-2 1982-04
257 Face-to-face and centre-to-face dimensions of valves; Valves with female thread connection
DIN 3202-4 1982-04
258 Technical Conditions of Delivery for Valves: Enquiry, Order and Delivery
DIN 3230-1 1974-04
259 Technical Conditions of Delivery for Valves: General Requirement DIN 3230-2 1974-04
260 Technical delivery Conditions for Valves: Compilation of test methods
DIN 3230-3 1982-04
261 Valves; body component materials DIN 3339 1984-01
262 Measurement of noise emitted by machines; airborne noise measurement, enveloping surface method; valves
DIN 45635-50 1987-01
263 Face-to-face and centre-to-face dimensions of metal industrial valves for use in flanged pipe systems-PN designated valves
DIN EN 558-1 1995-12
264 Face-to-face and centre-to-face dimensions of metal industrial valves for use in flanged pipe systems-Class-designated valves
DIN EN 558-2 1995-12
265 Valves-Terminology-Types of valves DIN EN 736-1 1995-04
266 Valves-Terminology-Part2: Definition of components of valves DIN EN 736-2 1997-11
267 Valves-Terminology-Part3:Definition of terms DIN EN 736-3 1999-08
268 Medical gas pipeline systems-Part1:Terminal units for compressed medical gases and vacuum
DIN EN 737-1 1998-02
269 Medical gas pipeline systems-Part4:Terminal units for anesthetic gas scavenging systems
DIN EN 737-4 1998-02
270 Sanitary tape ware-Automatic shut-off valves PN 10 DIN EN 816 1997-01
271 Plastics piping systems-Thermoplastics valves-Test methods for resistance to internal pressure and leak tightness
DIN EN 917 1997-03
272 Cryogenic vessels-Valves for cryogenic service DIN EN 1626 1999-05
273Plastics piping systems-Valves for polyethylene(PE) piping systems-Test method for leak tightness under and after bending applied to the operating mechanism,
DIN EN1680 1997-03
274 Plastics piping systems-Thermoplastics valves-Test method for the integrity of a valve after temperature cycling under bending
DIN EN 1704 1997-03
275 Plastics piping systems-Thermoplastics valves-Test method for the integrity of a valves after an external blow
DIN EN 1705 1997-01
276 Poly-ethylene (PE) valves-Test method for resistance to bending between supports
DIN EN 12100 1997-11
277 Plastics fittings, valves and ancillaries-Determinations of gaseous flow rate/pressure drop relationships
DIN EN 12117 1997-11
278 Plastic piping systems-Poly-ethylene(PE) valves-Test method for resistance to thermal cycling
DIN EN 12119 1991-06
279 Thermoplastics valves; torques; test method(IOS 8233:1988) DIN EN 28233 1991-06
280 Thermoplastic valves fatigue strength; test method (ISO 8659:1989)
DIN EN 28659 1991-06
Globe valves
281 Metal ball valves; general requirements and methods of test DIN 3357-1 1989-10
282 Full bore steel ball valves DIN 3357-2 1981-12
283 Reduced bore steel ball valves DIN 3357-3 1981-12
284 Full bore nonferrous metal ball valves DIN 3357-4 1981-12
285 Reduced bore nonferrous metal ball valves DIN 3357-5 1981-12
286 Un-plasticized polyvinyl chloride (PVC-U) valves; dimensions DIN 3441-2 1984-08
287 Fittings of PP (Polypropylene); Ball valves, dimensions DIN 3442-2 1980-10
289 Manually operated ball valves and closed bottom taper plug valves for gas installations in building
DIN EN 331 1999-04
Ball and plug valves
290 Technical delivery conditions; valves for gas installations and gas pipelines; requirements and testing
DIN 3230-5 1994-08
291 Technical delivery conditions for valves; requirement and methods of test for valves for use with flammable liquids
14PN 10 piston type gate valves for use in drinking water supply systems
DIN 3500 1990-02
15.Valves and Gate valves with Screwed Connections; Survey of Types for Ship-building
DIN 86500 1968-08
16.Bronze Wedge-type Flat-sided Gate Valves, with Screwed Bonnet and Flanges, ND 16, NW 20 to 200
DIN 86720 1968-09
17. Industrial valves - Metallic butterfly valves DIN EN 593 1998-03
Pressure regulators
18 Gas cylinder valves rated for test pressure up to 300 bar;types,sizes and outlets
DIN 477-1 1990-05
19 Gas cylinder valves rated for test pressure up to 450 bar;types,sizes and outlets
DIN 477-5 1990-02
20Safety devices for gas supply installations operating at working pressure up to 100 bar; pressure relief governors and safety shut-off devices
DIN 3381 1984-06
21 Pressure cut-off switches for gaseous substances; requirements and testing
DIN 3398-3 1982-11
22 Pressure cut-off switches for liquid fuels and heat transfer oils
DIN 3398-4 1986-10
23 Gas low-pressure cut-off valves; safety requirements, testing
DIN 3399 1986-08
24 Temperature control and limiting ,devices for heat generating systems; safety requirements and testing
DIN 3340 1984-07
25 Pressure governors for gas appliances for inlet pressure up to 200 mbar
DIN EN 88 1996-08
26 Multifunctional controls for gas burning appliances DIN EN 126 1995-08
27 Gas pressure regulators for inlet pressure up to 100 bar DIN EN 334 1999-07
28Pressure regulators for use with medical gases-Part 1: Pressure regulators and pressure regulators with flow metering devices
DIN EN 738-1 1997-04
29 Pressure regulators for use with medical gases-Part2:Manifold and line pressure regulators
DIN EN 738-2 1998-12
30 Pressure regulators for use with medical gases-Part3: Pressure regulators integrated with cylinder valves
DIN EN 738-3 1998-12
31Pressure regulators for use with medical gases-Part4: Low-pressure regulators intended for incorporation into medical equipment
DIN EN 738-4 1998-12
32 Gas welding equipment-Manifold regulators used in welding, cutting and allied processes up to 200 bar
DIN EN 961 1995-10
33 Pressure-sensing devices for gas burners and gas burning appliances
DIN EN 1854 1997-11
34 Pressure sensing devices for gas burners and gas burning appliances (Amendment A1)
DIN EN 1854/A1 1999-03
35 Gas/air controls for gas burners and gas burning appliances-Part 1: Pneumatic types
DIN EN 12067-1 1998-12
36 Zero governors for gas burners and gas burning appliances
DIN EN 12078 1998-12
37Gas welding equipment-Pressure regulators for gas cylinders used in welding, cutting and allied processes up to 300 bar (ISO 2503:1998)
DIN EN ISO 2503 1998-10
38Compatibility of transportable gas cylinder and valve materials with gas contents Part 1: Metallic materials (ISO 11114-1:1997,including Corrigendum AC:1998)
DIN EN ISO 11114-1 1998-07
40
Compatibility of transportable gas cylinder and valve materials with gas contents Part 3:Autogeneous ignition test in oxygen atmosphere (ISO 11114-3:1997,including Corrigendum AC:1998)
DIN EN ISO 11114-3 1998-06
41Transportable gas cylinders-Fitting of valves to gas cylinders(ISO 13341:1997,including Corrigendum AC: 1998)
DIN EN ISO 13341 1998-06
Wafer check valves
44 Casings for Non-return Flaps in accordance with DIN 87101
DIN 87102 1975-06
45 Covers for Non-return Flaps in accordance with DIN 87101
DIN 87103 1975-06
46 Flap Inserts for Non-returns Flap in accordance with DIN 87101
DIN 87104 1975-06
47 Screw Plugs with Cylindrical Extension for Non-return Flaps in accordance with DIN 87101
DIN 87105 1975-06
48 Locking Devices for non-return Flaps in accordance with DIN 87106
DIN 87106 1975-06
49 Gasket for non-return Flaps in accordance with DIN 87101
DIN 87107 1975-06
Other valves
50 Connections for part-turn valve actuator attachment; dimensions of driving components and flanges
DIN 3337 1985-09
51 Multi-turn valve actuators attachment; dimensions of type C driving components
DIN 3338 1987-12
52Valve protection caps and valve guards for use with industrial and medical gas cylinders-Design, construction and tests
DIN EN 962 1996-09
International Electromechanical Commission (IEC)Sr.No. DESCRIPTION IEC
1 International standards for resistance of copper 60028
2 Instrument transformers 60044
3 Colours of indicating lights and push buttons 60073
4
Electrical Apparatus for Explosive gas Atmospheres, part 14:Electrical Installation in Hazardous Areas (Other than mines)
60017.14
Electrical Apparatus for Explosive Gas Atmospheres, Part17 : Inspection and Maintenance of Electrical Installation in Hazardous Areas (Other than Mines)
60079.17
Electrical Apparatus for Explosive Gas Atmospheres, Part 19: Repair and Overhaul for Apparatus Used in Explosive Atmospheres Other than Mines or Explosive)
60079.19
5 Standard rated current of fuse links for low voltage fuses 60088
7 Conductors for insulated, electric cables and flexible, cards 60228
8 Electric relays 60255
9 Low voltage fuses 60269
10 Standard colours for insulating low frequency cables and wires
60304
11 Fire resisting Characteristics of electric cables 60331
12 Control switches 60337
13 Marking of insulated and bare conductors by colour 60391
14Guides for the inclusion of Reliability Clauses into Specification of Components (or Parts) for Electronic Equipment
60409
15 Stabilized power supply DC output 60478
16 Specification for degrees of protection provided by 60529
enclosures
17
Industrial -Process Control Valves, Part4: inspection and Routine Testing
60534-4
Industrial-Process Control Valves, Part 5: Marking 60534-5
Industrial -Process Control Valves, Part 8: Noise Considerations, Section2:Laboratory Measurement of Noise Generated by Hydrodynamic Flow Through Control Valves
60534-8.2
Industrial-Process Control Valves, Part 8:Noise Consideration, Section4:Prediction of Noise Generated by Hydrodynamic Flow
60534-8.4
18 International thermocouple reference tables 60584
19 Graphic symbols for electric power, telecommunications and electronics
60617
20Electrical measuring transducers for converting AC quantities to DC electrical quantities 60688
21Mineral insulated cables, and their termination, with rated voltage not. exceeding 750v 60702
22Specs. for armored cables with Thermosetting Insulation for Electric supply, (requirements and test methods of digital and power cables)
60811
23 Common methods for insulating and sheathing, materials of electric cables
60811
24 Common test methods for insulating and sheathing materials of electric cables
60885
25 Circuit breakers 60934
26Measurement of smoke density of electric cables, under fire conditions
61034
27 Test on electric cables, under fire conditions 60332-3
28 Instrument signal ranges 60381-1
29 Thermocouple, extension and compensating cables 60584-3
30 Test on gases evolved during combustion of materials from cables
60754-1
31 Electro magnetic compatibility for industrial process measurement and control
60801-3
32 Specification of conduit fitting for electrical installation 61035
33 Acceptance test of steam turbine control system 61064
34 Programmable controllers 61131
35 Nuclear instrumentation 61151
36 Dimension of metal sheathed thermometer elements 61152
Institute of Electrical & Electronic Engineers (IEEE)Sr. NO. DESCRIPTION IEEE
1 Guidelines for Documentation of Computer Software for Real Time and Interactive Systems
IEEE
American National Standards Institute (ANSI)Sr. No. DESCRIPTION ANSI
1 Control Valve Seat Leakage 70.2
2 Face to face and end to end dimensions of ferrous valves
B 16.10
3 Test on valves B 16.104
4 Steel valves, Flanges and , Butt weld ends (Valve design, body pressure temperature rating)
B 16.34
5 Steel valves, Flanges and Butt weld ends B 16.34
6 Hydro static testing on control valves B 16.37
7 Pipe flanges and flanged fittings, steel nickel alloy and other special alloy
B 16.5
8 Steel pipe flanges and, flanged fittings B 16.5
9 Steel pipe flanges, and fittings B 16.5
10 Power piping B 31.1
11 Chemical Plant and Petroleum Refinery Piping B 31.3
12 Gauges-pressure and vacuum gauges B 40.1
13 Surface texture gasket seating area) B 46.1
14 Surface texture B 46.1
15 Temperature measurement, thermocouples MC 96.1
16 Thermocouples, extension and compensating cables
MC 96.1
ISA Instrumentation Codes in Process Control Systems The ISA standards and symbols are important for the P&IDs and documents describing the process control system
Sponsored Links
Process Variable Symbol Type of Instrument Symbol
Analyses A Alarm A
Burner B Users Choice B
Combustion B Controller C
Users Choice C Control valve CV
Users Choice D Trap CV
Voltage V Sensor (primary element) E
Flow Rate F Rupture disc E
Users Choice G Sight or gage glass G
Current (electric) I Monitor G
Power J Indicator I
Time K Control Station K
Level L Light (pilot/operation) L
Users Choice M Users Choice N
Users Choice N Flow Resistance Orifice O
Users Choice O Test point (sample point) P
Pressure / Vacuum P Recorder R
Radiation R Switch S
Speed (or Frequency) S Transmitter T
Temperature T Multifunction U
Multivariable U Valve/Damper V
Vibration V Well W
Weight (force) W Unclassified X
Unclassified X Relay Y
Event Y Driver Z
Position, dimension Z Actuator Z
Example - ISA symbols for a Level Indicator
A level indicator will receive the symbol "L" for the process variable "Level", and "I" for the "Indicator" type of instrument. Both combines to:
LI
For unique identification it is common to add a number to the ISA code, by example the code for level indicator no. eight may be: