An International Standard is a document, established by consensus. It describes how to achieve an optimal outcome time after time by using an agreed and consistent approach.
International Electrotechnical Commission
IEC Central Office
3, rue de Varembé
1211 Geneva 20
Switzerland
Tel: +41 22 919 02 11
www.iec.ch
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ISO Central Secretariat
Chemin de Blandonnet 8
CP 401
1214 Vernier, Geneva
Switzerland
Tel: +41 22 749 01 11
www.iso.org
INTERNATIONAL TELECOMMUNICATION UNION
ITU
Place des Nations
1211 Geneva 20
Switzerland
Tel: +41 22 730 51 11
www.itu.int