TC 25

Quantities and units

Label	Title
Maintenance Teams
MT 8	Revision of IEC 60375, IEC 60027-2,-4,-6 and -7, and IEC 62428
Joint Working Groups
JWG 2	Revision and amendment of IEC-related parts of ISO/IEC 80000 series linked to ISO/TC 12
Advisory Groups
AG 1	Advisory Group

Country	Country Code	P/O Status	IEC Membership
Austria	AT	O-Member	Full Member
Belarus	BY	O-Member	Full Member
Belgium	BE	O-Member	Full Member
Bulgaria	BG	O-Member	Full Member
China	CN	P-Member	Full Member
Czech Republic	CZ	P-Member	Full Member
Denmark	DK	O-Member	Full Member
Egypt	EG	P-Member	Full Member
Finland	FI	O-Member	Full Member
France	FR	P-Member	Full Member
Germany	DE	P-Member	Full Member
India	IN	O-Member	Full Member
Iran	IR	O-Member	Full Member
Italy	IT	P-Member	Full Member
Japan	JP	P-Member	Full Member
Korea, Republic of	KR	P-Member	Full Member
Netherlands	NL	O-Member	Full Member
Norway	NO	O-Member	Full Member
Poland	PL	P-Member	Full Member
Portugal	PT	P-Member	Full Member
Romania	RO	O-Member	Full Member
Russian Federation	RU	O-Member	Full Member
Serbia	RS	O-Member	Full Member
Slovakia	SK	O-Member	Full Member
Spain	ES	P-Member	Full Member
Sweden	SE	P-Member	Full Member
Switzerland	CH	P-Member	Full Member
Ukraine	UA	O-Member	Full Member
United Kingdom	GB	P-Member	Full Member
United States of America	US	P-Member	Full Member

Chair	Mr Michael Paul Krystek (DE) Term of office : 2022-05	Send Email
Secretary	Mr Luca P.M. Mari (IT)	Send Email
Assistant Secretary	Mr Andrea Nafi (IT)	Send Email

Technical Officer	Mrs Joanna Goodwin	Send Email
Standards Project Administrator	Mrs Sandrine Gosselin	Send Email
Standards Project Administrator	Ms Izabela Witik	Send Email
Editor	Mr Leon Morsley	Send Email

Full contact details are available to authorized users after log in.

Committee	Description	Incoming liaison representative	Outgoing liaison representative
Internal IEC Liaison
TC 1	Terminology	Mr Erik Jacobson	Mr Luca Mari
SC 3C	Graphical symbols for use on equipment	Mr Arto Sirviö	Mr Jan Obdrzalek
SC 3D	Classes, Properties and Identification of products - Common Data Dictionary (CDD)	Mr Gernot Rossi	Mr Jan Obdrzalek
TC 29	Electroacoustics	Mr Richard Barham
Liaison ISO
ISO/TC 12	Quantities and units	Mr Charles Ehrlich Mr Sven Radhe	Mr Michael Ainslie
Liaison A
BIPM	International Bureau of Weights and Measures	Mr Martin Milton	Mr Michael Krystek
CIE	International Commission on Illumination	Mr Peter Zwick
ITU	International Telecommunication Union
IUPAP	International Union of Pure and Applied Physics
OIML	International Organization of Legal Metrology
UNICODE	UNICODE Consortium