ICTAC organises congresses to exchange information, and coordinating efforts towards standardization and nomenclature. Lists upcoming events, membership details and contacts in Toronto, Canada.

For people interested or involved in the science and practice of measurement. Includes details of biennial conference, members, technical groups, list of journal contents, and contacts in Newton, South Australia.

Agreement among national metrology organizations, whose goal is to promote international and regional cooperation in the Americas for scientific, industrial and legal metrology. Includes overview, organizational structure and meetings.

US-based; concerned with national and international standards, laboratory accreditation, and measurement technology. News and information about current developments, annual conferences, membership, publications offered, and other topics.

Organization of 28 European countries cooperating in legal metrology to establish a harmonized and consistent approach. Details of working groups, notifies bodies, training, events calendar, members login and details of member states.