Programme of work


BUREAU OF INDIAN STANDARDS


Electrotechnical Department

Programme of Work




ETD23 : Lamps and Related Equipments


  • Scope : To prepare standards for all types of electric lamps, caps and their auxiliaries
  • Liaison :
    IEC TC 34 / SC 34B - Lamp caps and holders - Participating (P)
    IEC TC 34 / SC 34C - Auxiliaries for lamps - Participating (P)
    IEC TC 34 - Lighting - Participating (P)
    IEC TC 34/SC 34A - Electric light sources - Participating (P)

Published Standards

SI. No.
IS No.
Title
Reaffirmation Details
No. of Amendments
Degree of Equivalence
1.
IS 11472 (Part 1):1985
Reviewed In : 2018
Specification for artificial daylight for the assessment of colour: Part 1 illuminant for colour matching and colour appraisal
March, 2018
-
Modified/Technically Equivalent
2.
IS 11472 (Part 2):1985
Reviewed In : 2018
Specification for artificial daylight for the assessment of colour: Part 2 viewing conditions for graphic arts industry
March, 2018
-
Modified/Technically Equivalent
3.
IS 12290:1987
Reviewed In : 2024
Specification for isolating transformers for airport lighting systems
May, 2024
-
Modified/Technically Equivalent
4.
IS 12291:1987
Reviewed In : 2024
Specification for constant current regulators for airport lighting systems
January, 2024
-
Modified/Technically Equivalent
5.
IS 12897:2001
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Filaments for general service lamps - Guide (First Revision)
December, 2024
1
Indigenous
6.
IS 12948:1990
Reviewed In : 2024
Reaffirmed but not taken up for revision
Tungsten halogen lamps (Non - Vehicle) - Specification
April, 2024
1
Modified/Technically Equivalent
7.
IS 13021 (Part 2):1991
Reviewed In : 2024
Reaffirmed but not taken up for revision
AC supplied electronic ballasts for tubular fluorescent lamps - Specification: Part 2 performance requirements
May, 2024
2
Modified/Technically Equivalent
8.
IS 14897:2021
60887
Glass Bulb Designation System for Lamps ( First Revision )
-
Identical under dual numbering
9.
IS 15111 (Part 1):2002
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Self ballasted lamps for general lighting services: Part 1 safety requirements
December, 2024
6
Modified/Technically Equivalent
10.
IS 15111 (Part 2):2002
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Self ballasted lamps for general lighting services: Part 2 performance requirements
December, 2024
7
Modified/Technically Equivalent
11.
IS 15518 (Part 1):2004
Reviewed In : 2024
Safety requirements for incandescent lamps: Part 1 tungsten filament lamps for domestic and similar general lighting purposes
December, 2024
3
Modified/Technically Equivalent
12.
IS 15687 (Part 1):2006
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Single - Capped fluorescent lamps: Part 1 safety requirements
December, 2024
-
Modified/Technically Equivalent
13.
IS 1569:1976
Reviewed In : 2021
Reaffirmed but not taken up for revision
Specification for capacitors for use in tubular fluorescent, high pressure mercury and low pressure sodium vapour discharge lamp circuits (First Revision)
July, 2021
1
Modified/Technically Equivalent
14.
IS 15882:2009
Reviewed In : 2025
Ballasts for discharge lamps (Excluding Tubular Fluorescent Lamps) - Performance requirements
February, 2025
-
Modified/Technically Equivalent
15.
IS 15885 (Part 1):2011
Reviewed In : 2021
Safety of lamp controlgear: Part 1 general requirements
May, 2021
1
Modified/Technically Equivalent
16.
IS 15885 (Part 2/Sec 1):2011
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Safety of lamp control gear: Part 2 particular requirements: Sec 1 starting devices (Other Than Glow Starters)
December, 2024
-
Modified/Technically Equivalent
17.
IS 15885 (Part 2/Sec 3):2011
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Safety of lamp control gear: Part 2 particular requirements: Sec 3 ac supplied electronic ballasts for fluorescent lamps
December, 2024
-
Modified/Technically Equivalent
18.
IS 15885 (Part 2/Sec 8):2011
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Safety of lamp control gear: Part 2 particular requirements: Sec 8 ballasts for fluorescent lamps
December, 2024
-
Modified/Technically Equivalent
19.
IS 15885 (Part 2/Sec 9):2011
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Safety of lamp control gear: Part 2 particular requirements: Sec 9 ballasts for discharge lamps (Excluding Fluorescent Lamps)
December, 2024
-
Modified/Technically Equivalent
20.
IS 15885 (Part 2/Sec 13):2012
Reviewed In : 2024
Safety of lamp controlgear: Part 2 particular requirements: Sec 13 d.c. or a.c. supplied electronic controlgear for led modules
December, 2024
1
Modified/Technically Equivalent
21.
IS 15906:2010
Reviewed In : 2021
Measurement of mercury level in fluorescent lamps
May, 2021
-
Modified/Technically Equivalent
22.
IS 15967 (Part 1):2013
ISO 7543-1 :1994
Reviewed In : 2023
Capacitors for use in tubular fluorescent and other discharge lamp circuits: Part 1 safety requirements
June, 2023
-
Modified/Technically Equivalent
23.
IS 15967 (Part 2):2013
ISO 7543-2 :1993
Reviewed In : 2023
Capacitors for use in tubular fluorescent and other discharge lamp circuits: Part 2 performance requirements
May, 2023
-
Modified/Technically Equivalent
24.
IS 15968:2013
Reviewed In : 2023
Ballasts for tubular fluorescent lamps - Performance requirements
May, 2023
-
Modified/Technically Equivalent
25.
IS 15974:2013
Reviewed In : 2024
Auxiliaries for lamps starting devices (Other Than Glow Starters) - Performance requirements
December, 2024
-
Modified/Technically Equivalent
26.
IS 16101:2012
IEC/TS 62504 :2011
Reviewed In : 2024
General lighting - Leds and led modules - Terms and definitions
December, 2024
-
Identical under dual numbering
27.
IS 16102 (Part 1):2012
Reviewed In : 2024
Self - Ballasted led lamps for general lighting services: Part 1 safety requirements
May, 2024
3
Modified/Technically Equivalent
28.
IS 16102 (Part 2):2017

Reviewed In : 2024
Self - Ballasted led lamps for general lighting services: Part 2 performance requirements (First Revision)
May, 2024
1
Modified/Technically Equivalent
29.
IS 16103 (Part 1):2025
IEC 62031: 2018
LED Modules for General Lighting Part 1 Safety Specifications (First Revision)
-
Identical under dual numbering
30.
IS 16103 (Part 1):2012
Reviewed In : 2024
Led modules for general lighting: Part 1 safety requirements
May, 2024
1
Identical under dual numbering
31.
IS 16103 (Part 2):2025
IEC 62717: 2019 CSV
LED Modules for General Lighting Part 2 Performance Requirements (First Revision)
-
Identical under dual numbering
32.
IS 16103 (Part 2):2012
Reviewed In : 2024
Led modules for general lighting: Part 2 performance requirements
May, 2024
3
Identical under dual numbering
33.
IS 16104:2012
Reviewed In : 2024
D.C. or A.C. supplied electronic control gear for led modules - Performance requirements
May, 2024
-
Modified/Technically Equivalent
34.
IS 16105:2012
Reviewed In : 2024
Method of measurement of lumen maintenance of solid state light (Led) sources
December, 2024
-
Modified/Technically Equivalent
35.
IS 16106:2012
Reviewed In : 2024
Method of electrical and photometric measurements of solid state lighting (Led) products
December, 2024
-
Modified/Technically Equivalent
36.
IS 16107 (Part 2/Sec 2):2017

Luminaries Performance Part 2 Particular Requirements Section 2 LED Street Lighting Luminarie
-
Modified/Technically Equivalent
37.
IS 16108:2012
IEC 62471 :2006
Reviewed In : 2024
Photobiological safety of lamps and lamp systems
May, 2024
-
Identical under dual numbering
38.
IS 16108 (Part 2):2018
IEC/TR 62471-2 : 2009
Reviewed In : 2024
Photobiological safety of lamps and lamp systems: Part 2 guidance on manufacturing requirements relating to non - Laser optical radiation safety
December, 2024
-
Identical under dual numbering
39.
IS 16108 (Part 3):2018
IEC/TR 62471-3 : 2015
Reviewed In : 2024
Photobiological safety of lamps and lamp systems: Part 3 guidelines for the safe use of intense pulsed light source equipment on humans
December, 2024
-
Identical under dual numbering
40.
IS 16148:2014
IEC 61167:2011
Reviewed In : 2025
Metal halide lamps - Performance specification
February, 2025
-
Identical under dual numbering
41.
IS 16166:2014
IEC 62554:2011
Reviewed In : 2025
Sample preparation for measurement of mercury level in fluorescent lamps
February, 2025
-
Identical under dual numbering
42.
IS 16614 (Part 1):2018

Reviewed In : 2024
Double- Capped LED Linear Lamps Part1 Safety Specification
May, 2024
-
Modified/Technically Equivalent
43.
IS 16614 (Part 2):2022
Double-Capped LED Linear Lamps Part 2 Performance Specification
1
Modified/Technically Equivalent
44.
IS 16661:2019
IEC/TR 62778 : 2014
Reviewed In : 2024
Application of IS 16108/IEC 62471 for the assessment of blue light hazard to light sources and luminaires
December, 2024
-
Identical under dual numbering
45.
IS 2215:2006
IEC 60155
Reviewed In : 2025
Starters for fluorescent lamps (Third Revision)
February, 2025
-
Modified/Technically Equivalent
46.
IS 2262:1963
Reviewed In : 2021
Reaffirmed but not taken up for revision
Specification for transformers for high voltage luminous discharge tubes
March, 2021
-
Modified/Technically Equivalent
47.
IS 2418 (Part 1):2018

Reviewed In : 2025
Tubular fluorescent lamps for general lighting service: Part 1 safety requirements (Second Revision)
February, 2025
1
Modified/Technically Equivalent
48.
IS 2418 (Part 2):2018

Reviewed In : 2025
Tubular fluorescent lamps for general lighting service: Part 2 performance requirements (Second Revision)
February, 2025
1
Modified/Technically Equivalent
49.
IS 2418 (Part 3):1977
IEC 61-1
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for tubular fluorescent lamps for general lighting service: Part 3 dimensions of g - 5 and g - 13 bi - Pin cpas (First Revision)
May, 2024
1
Modified/Technically Equivalent
50.
IS 2418 (Part 4):1977
IEC 61-3
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for tubular fluorescent lamps for general lighting service: Part 4 go and no - Go gauges for g - 5 and g - 13 bi-pin caps (First Revision)
May, 2024
-
Modified/Technically Equivalent
51.
IS 2592:1980
Reviewed In : 2017
Specification for lamps for lighting on board ships (First Revision)
March, 2017
-
Modified/Technically Equivalent
52.
IS 2596:2004
Reviewed In : 2019
Bulbs (Lamps) for Miners' Cap-Lamps
-
Modified/Technically Equivalent
53.
IS 418:2004
IEC 60064
Reviewed In : 2025
Tungsten filament lamps for domestic and similar general lighting purposes (Fourth Revision)
February, 2025
5
Modified/Technically Equivalent
54.
IS/IEC/TR 61341:2010
IEC/TR 61341 : 2010
Reviewed In : 2024
Method of Measurement of Centre Beam Intensity and Beam Angle(S) of Reflector Lamps
May, 2024
-
Identical under single numbering
55.
IS 6701:1985
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for tungsten filament miscellaneous electric lamps (First Revision)
March, 2024
2
Modified/Technically Equivalent
56.
IS 8685:1977
IEC 60434
Reviewed In : 2024
Specification for aircraft lamps
May, 2024
-
Modified/Technically Equivalent
57.
IS 8901:1978
Reviewed In : 2016
Specification for lamps for aerodrome lighting fittings
1
Indigenous
58.
IS 8913:2025
IEC 60360: 1998
Standard method of measurement of lamp cap temperature rise (First Revision)
-
Identical under dual numbering
59.
IS 8913:1978
Reviewed In : 2024
Method of measurement of lamp cap temperature rise
May, 2024
-
Identical under dual numbering
60.
IS 897:1982
Reviewed In : 2020
Specification for tungsten filament electric lamps for railway rolling stock (Second Revision)
March, 2020
3
Modified/Technically Equivalent
61.
IS 9206:1979
IEC 60061-1
Reviewed In : 2024
Dimensions of caps for tungsten filament general service electric lamps
May, 2024
5
Modified/Technically Equivalent
62.
IS 9589:1980
Reviewed In : 2017
Specification for electric lamps for railway signalling
December, 2017
-
Modified/Technically Equivalent
63.
IS 9900 (Part 1):1981
IEC 188
Reviewed In : 2022
Reaffirmed but not taken up for revision
Specification for high pressure mercury vapour lamps: Part 1 requirements and tests
July, 2022
4
Modified/Technically Equivalent
64.
IS 9900 (Part 2):1981
IEC 188
Reviewed In : 2022
Reaffirmed but not taken up for revision
Specification for high pressure mercury vapour lamps: Part 2 standard lamp data sheets
May, 2022
1
Modified/Technically Equivalent
65.
IS 9900 (Part 3):1981
IEC 188
Reviewed In : 2025
Reaffirmed but not taken up for revision
Specification for high pressure mercury vapour lamps: Part 3 dimensions of lamp caps
February, 2025
-
Modified/Technically Equivalent
66.
IS 9900 (Part 4):1981
IEC 61-3
Reviewed In : 2023
Reaffirmed but not taken up for revision
High pressure mercury vapour lamps : Part 4 Go and no-go gauges of lamp caps. (Superseding IS : 2183 and IS: 7023)
May, 2023
-
Modified/Technically Equivalent
67.
IS 9974 (Part 1):1981
IEC 662
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for high pressure sodium vapour lamps: Part 1 general requirements and tests
March, 2024
5
Modified/Technically Equivalent
68.
IS 9974 (Part 2):1981
IEC 662
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for high pressure sodium vapour lamps: Part 2 standard lamp data sheets
March, 2024
3
Modified/Technically Equivalent

Standards Under Develpoment

Projects Approved

SI. No.
Doc No
TITLE
No Records Found

Preliminary Draft Standards

SI. No.
Doc No
TITLE
1
ETD 23 (28084)
Revision of: IS 15885:2012
Controlgear for Electric Light Sources Safety Part 2 Particular requirements Section 13 Electronic controlgear for LED light sources First Revision
2
ETD 23 (28215)
Revision of: IS 9206:1979
Dimensions of Caps for Tungsten Filament General Service Electric Lamps First Revision
3
ETD 23 (28491)
Revision of: IS 12290:1987
Specification for Isolating Transformers for Airport Lighting Systems First Revision
4
ETD 23 (28492)
Revision of: IS 12291:1987
Specification for Constant Current Regulators for Airport Lighting Systems First Revision

Drafts Standards in WC Stage

SI. No.
Doc No
TITLE
No Records Found

Draft Standards Completed WC Stage

SI. No.
Doc No
TITLE
No Records Found

Finalized Draft Indian Standard

SI. No.
Doc No
TITLE
1
ETD 23 (26233)
Revision of: IS 16102:2017
Self-Ballasted LED Lamps for General Lighting Services Part 2 Performance Requirements Second Revision

Finalized Draft Indian Standards under Print

SI. No.
Doc No
TITLE
1
ETD 23 (26232)

Revision of: IS 16102:2012
Self-Ballasted LED Lamps for General Lighting Services Part 1 Safety Requirements First Revision
2
ETD 23 (26497)

Revision of: IS 16614:2018
Double-Capped LED Linear Lamps Part 1 Safety Requirements First Revision


Aspect Wise Report

 
 Product:   36
 Code of Practices :    2
 Methods of Test :   5
 Terminology :   2
 Dimensions :   5
 System Standard :   0
 Safety Standard :   11
 Others :    3
 Service Specification :    0
 Process Specification :    0
 Unclassified :    0
 


Annexure-I :List of Indian Standards Withdrawn/Superseded

SI. No.
IS No.
Title
1.
IS 10322 (Part 2):1982
Reviewed In : 2015
Luminaires - Part 2 Constructional Requirements
2.
IS 10322 (Part 3):1984
Reviewed In : 2015
Luminaires - Part 3 Screw and Screwless Terminals Superseding IS 6585
3.
IS 10322 (Part 4):1984
Reviewed In : 2015
Luminaires - Part 4 Methods of Tests
4.
IS 11980:1987
Reviewed In : 2017
Specification for lamp Bulb for cycle dynamo
5.
IS 12449 (Part 1):1988
Reviewed In : 2018
Specification For starting devices Other Than Glow Starters Part 1 general and safety requirements
6.
IS 12449 (Part 2):1988
IEC 60927
Reviewed In : 2018
Specification For starting devices Other Than Glow Starters Part 2 performance requirements
7.
IS 13021 (Part 1):1991
Reviewed In : 2016
AC supplied electronic ballasts for tubular fluorescent lamps - Specification Part 1 general and safety requirements
8.
IS 1534 (Part 1):1977
IEC 82
Reviewed In : 2011
Ballasts for fluorescent lamps Part 1 For switch start circuits
9.
IS 1901:1978
Reviewed In : 2017
Specification for visual indicator lamps First Revision
10.
IS 2183:1973
Schedule for high pressure mercury vapour lamps
11.
IS 2261:1975
Reviewed In : 2015
Specification for lamps for flashlights First Revision
12.
IS 2407:1963
Reviewed In : 2024
Specification for photometric integrators
13.
IS 2418 (Part 1):1977
Reviewed In : 2010
Tubular Fluorescent Lamps for General Lighting Service - Part I Requirements and Tests
14.
IS 3528:1966
Reviewed In : 2015
Waterproof Electric Lighting Fittings
15.
IS 3553:1966
Reviewed In : 2015
Watertight Electric Lighting Fittings
16.
IS 3646 (Part 2):1966
Reviewed In : 2013
Code of Practice for Interior Illumination - Part 2 Schedule of Illumination and Glare Index
17.
IS 3646 (Part 3):1968
Reviewed In : 2013
Code of practice for interior illumination Part 3 Calculation of coefficients of utilization by the BZ method
18.
IS 4242:1967
Reviewed In : 2000
Methods of measurement of acoustical noise emitted by ballasts for gaseous discharge lamps
19.
IS 5077:1969
Reviewed In : 2015
Decorative Lighting Outfits
20.
IS 6616:1982
IEC 262
Reviewed In : 2011
Ballasts for high pressure mercury vapour lamps
21.
IS 7013:1981
Reviewed In : 2013
Radio dial lamps
22.
IS 7023:1973
Methods of tests for high pressure mercury vapour lamps
23.
IS 7027:1984
Reviewed In : 2016
Specification for transistorized ballasts for fluorescent lamps First Revision
24.
IS 8030:1976
Reviewed In : 2013
Luminaires for Hospitals


Annexure-II :List of Indian Product Standards

SI. No.
IS No. & Year
Title
1.
IS 12290:1987
Reviewed In : 2024
Specification for isolating transformers for airport lighting systems
2.
IS 12291:1987
Reviewed In : 2024
Specification for constant current regulators for airport lighting systems
3.
IS 12948:1990
Reviewed In : 2024
Reaffirmed but not taken up for revision
Tungsten halogen lamps Non - Vehicle - Specification
4.
IS 13021 (Part 2):1991
Reviewed In : 2024
Reaffirmed but not taken up for revision
AC supplied electronic ballasts for tubular fluorescent lamps - Specification Part 2 performance requirements
5.
IS 15111 (Part 2):2002
Reviewed In : 2024
Decision taken to Reaffirm and Archive
Self ballasted lamps for general lighting services Part 2 performance requirements
6.
IS 1569:1976
Reviewed In : 2021
Reaffirmed but not taken up for revision
Specification for capacitors for use in tubular fluorescent high pressure mercury and low pressure sodium vapour discharge lamp circuits First Revision
7.
IS 15882:2009
Reviewed In : 2025
Ballasts for discharge lamps Excluding Tubular Fluorescent Lamps - Performance requirements
8.
IS 15885 (Part 1):2011
Reviewed In : 2021
Safety of lamp controlgear Part 1 general requirements
9.
IS 15885 (Part 2/Sec 13):2012
Reviewed In : 2024
Safety of lamp controlgear Part 2 particular requirements Sec 13 d c or a c supplied electronic controlgear for led modules
10.
IS 15967 (Part 2):2013
ISO 7543-2 :1993
Reviewed In : 2023
Capacitors for use in tubular fluorescent and other discharge lamp circuits Part 2 performance requirements
11.
IS 15968:2013
Reviewed In : 2023
Ballasts for tubular fluorescent lamps - Performance requirements
12.
IS 15974:2013
Reviewed In : 2024
Auxiliaries for lamps starting devices Other Than Glow Starters - Performance requirements
13.
IS 16102 (Part 1):2012
Reviewed In : 2024
Self - Ballasted led lamps for general lighting services Part 1 safety requirements
14.
IS 16102 (Part 2):2017

Reviewed In : 2024
Self - Ballasted led lamps for general lighting services Part 2 performance requirements First Revision
15.
IS 16103 (Part 1):2025
IEC 62031: 2018
LED Modules for General Lighting Part 1 Safety Specifications First Revision
16.
IS 16103 (Part 2):2025
IEC 62717: 2019 CSV
LED Modules for General Lighting Part 2 Performance Requirements First Revision
17.
IS 16104:2012
Reviewed In : 2024
D C or A C supplied electronic control gear for led modules - Performance requirements
18.
IS 16107 (Part 2/Sec 2):2017

Luminaries Performance Part 2 Particular Requirements Section 2 LED Street Lighting Luminarie
19.
IS 16148:2014
IEC 61167:2011
Reviewed In : 2025
Metal halide lamps - Performance specification
20.
IS 16614 (Part 1):2018

Reviewed In : 2024
Double- Capped LED Linear Lamps Part1 Safety Specification
21.
IS 16614 (Part 2):2022
Double-Capped LED Linear Lamps Part 2 Performance Specification
22.
IS 2215:2006
IEC 60155
Reviewed In : 2025
Starters for fluorescent lamps Third Revision
23.
IS 2262:1963
Reviewed In : 2021
Reaffirmed but not taken up for revision
Specification for transformers for high voltage luminous discharge tubes
24.
IS 2418 (Part 2):2018

Reviewed In : 2025
Tubular fluorescent lamps for general lighting service Part 2 performance requirements Second Revision
25.
IS 2592:1980
Reviewed In : 2017
Specification for lamps for lighting on board ships First Revision
26.
IS 2596:2004
Reviewed In : 2019
Bulbs Lamps for Miners Cap-Lamps
27.
IS 418:2004
IEC 60064
Reviewed In : 2025
Tungsten filament lamps for domestic and similar general lighting purposes Fourth Revision
28.
IS 6701:1985
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for tungsten filament miscellaneous electric lamps First Revision
29.
IS 8685:1977
IEC 60434
Reviewed In : 2024
Specification for aircraft lamps
30.
IS 8901:1978
Reviewed In : 2016
Specification for lamps for aerodrome lighting fittings
31.
IS 897:1982
Reviewed In : 2020
Specification for tungsten filament electric lamps for railway rolling stock Second Revision
32.
IS 9589:1980
Reviewed In : 2017
Specification for electric lamps for railway signalling
33.
IS 9900 (Part 1):1981
IEC 188
Reviewed In : 2022
Reaffirmed but not taken up for revision
Specification for high pressure mercury vapour lamps Part 1 requirements and tests
34.
IS 9900 (Part 2):1981
IEC 188
Reviewed In : 2022
Reaffirmed but not taken up for revision
Specification for high pressure mercury vapour lamps Part 2 standard lamp data sheets
35.
IS 9974 (Part 1):1981
IEC 662
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for high pressure sodium vapour lamps Part 1 general requirements and tests
36.
IS 9974 (Part 2):1981
IEC 662
Reviewed In : 2024
Reaffirmed but not taken up for revision
Specification for high pressure sodium vapour lamps Part 2 standard lamp data sheets