Organizações Nacionais

APQ - Associação Portuguesa para a Qualidade
http://www.apq.pt

IPAC - Instituto Português da Acreditação
http://www.ipac.pt

IPQ - Instituto Português da Qualidade
http://www.ipq.pt

SPMet - Sociedade Portuguesa de Metrologia
http://www.spmet.pt

Organizações Internacionais

BIPM - Bureau International des Poids et Mesure
http://www.bipm.fr

CEN - European Committee for Standardization
http://www.cenorm.be

CENELEC - European Committee for Electrotechnical Standardization
http://www.cenelec.org

EA - European co-operation for Accreditation
http://www.european-accreditation.org

EURACHEM - A focus for Analytical Chemistry in Europe
http://www.eurachem.org

EUROLAB - European Federation of National Associations of Measurement, Testing and Analytical Laboratories
http://www.eurolab.org

EUROMET - European Collaboration in Measurement Standards
http://www.euromet.org

IEC - International Electrotechnical Committee
http://www.iec.ch

ILAC - International Laboratory Accreditation Cooperation
http://www.ilac.org

IMEKO - International Measurement Confederation
http://www.imeko.org

ITU - International Telecommunication Union
http://www.itu.ch

ISO - International Standardization Organization
http://ww.iso.ch

ETSI - European Telecommunications Standards Institute
http://www.etsi.org

OIML - International Organization of Legal Metrology
http://www.oiml.org

VIRM - Virtual Institute for Reference Materials
http://www.virm.net