CENELEC
www.cenelec.org
European Committee for Electrotechnical Standardisation (1973 est) recognised as the European Standards Organisation in its field by the EC in Directive 83/189/EEC. Has Technical Committees (TCs), Sub-committees (SCs), Special Task Forces, Working Groups. Site shows how CENELECs are numbered, co-operation with EEC. CENELEC makes suggestions for IEC (qv) to work on.

ISO
http://www.iso.org/iso/en/ISOOnline.frontpage
Use Search ="Noise"

CEN Catalogue
http://www.cenorm.be/catweb

National Standards Organisations
http://www.iso.ch/addresse/membodies.html
List of addresses for different countries

ANSI (American National Standards Institution)
http://www.ansi.org

IEC
http://www.iec.ch