ISO/TC 12 - Quantities and units

About

Secretariat: SIS (Sweden)

Committee Manager:

Mr Sven Radhe
Chairperson (until end 2027):

Dr Torgny Carlsson
ISO Technical Programme Manager [TPM]:

Mme Mercè Ferrés Hernández

ISO Editorial Manager [EM]:

M Vincenzo Bazzucchi
Creation date: 1947

Scope

Standardization of units and symbols for quantities and units (and mathematical symbols) used within the different fields of science and technology, giving, where necessary, definitions of these quantities and units. Standard conversion factors between the various units.

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This committee contributes with 17 standards to the following Sustainable Development Goals:

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Published ISO standards *

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Liaisons
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Liaison Committees to ISO/TC 12

The committees below can access the documents of ISO/TC 12:

Reference	Title	ISO/IEC
IEC/TC 25	Quantities and units	IEC
IEC/TC 29	Electroacoustics	IEC
ISO/IEC JTC 1/SC 32	Data management and interchange	ISO/IEC
ISO/TC 37	Language and terminology	ISO
ISO/TC 43	Acoustics	ISO
ISO/TC 43/SC 1	Noise	ISO
ISO/TC 43/SC 3	Underwater acoustics	ISO
ISO/TC 69	Applications of statistical methods	ISO
ISO/TC 85	Nuclear energy, nuclear technologies, and radiological protection	ISO
ISO/TC 215	Health informatics	ISO

Liaison Committees from ISO/TC 12

ISO/TC 12 can access the documents of the committees below:

Reference	Title	ISO/IEC
CIE	International Commission on Illumination	ISO
IEC/TC 1	Terminology	IEC
IEC/TC 25	Quantities and units	IEC
ISO/IEC JTC 1/SC 32	Data management and interchange	ISO/IEC
ISO/TC 37	Language and terminology	ISO
ISO/TC 43	Acoustics	ISO
ISO/TC 43/SC 1	Noise	ISO
ISO/TC 43/SC 3	Underwater acoustics	ISO
ISO/TC 69	Applications of statistical methods	ISO
ISO/TC 85	Nuclear energy, nuclear technologies, and radiological protection	ISO
ISO/TC 215	Health informatics	ISO

Organizations in liaison (Category A and B)

Acronym	Title	Category
BIPM	International Bureau of Weights and Measures	A
CIE	International Commission on Illumination	A
EURAMET	European Association of National Metrology Institutes	A
IAEA	International Atomic Energy Agency	A
ICAO	International Civil Aviation Organization	A
ICRU	International Commission on Radiation Units and Measurements	A
Infoterm	International Information Centre for Terminology (Infoterm)	A
ITU	International Telecommunication Union	A
IUCr	International Union of Crystallography	A
IUPAC	International Union of Pure and Applied Chemistry	A
IUPAP	International Union of Pure and Applied Physics	A
OASIS	Organization for the Advancement of Structured Information Standards (OASIS)	A
OIML	International Organization of Legal Metrology	A
UNECE	United Nations Economic Commission for Europe	A
WCO	World Customs Organization	A
WHO	World Health Organization	A
WMO	World Meteorological Organization	A
EC - European Commission	European Commission	B
IMO	International Maritime Organization	B