International Union of Pure & Applied Chemistry (IUPAC)

Air and Waste Management Association (AWMA)

American Association for the Advancement of Science (AAAS)

American Association for Clinical Chemistry (AACC)

American Association of Pharmaceutical Scientists (AAPS)

American Institute of Chemical Engineers (AICHE)

American Chemical Society

American Medical Association (AMA)

American Physical Society (APS)

Association of Consulting Chemists and Chemical Engineers

Chemical Structure Association Trust

Czech Chemical Society

Dechema e.V.

Electrochemical Society (ECS)

German Chemical Society (GDCh)

Instrumentation Testing Association (ITA)

International Society for Measurement and Control (ISA)

National Academy of Sciences (NAS)

National Institute of Standards and Technology (NIST) Standard Reference Data Program

Offshore Technology: Website for the Offshore Oil and Gas Industry

Royal Australian Chemical Institute (RACI)

Sociedade Brasileira de Quimica (SBQ)

South African Chemical Society

UN Economic Commission for Europe - Chemical Industry Links (UN-ECE)