ACS - American Chemical Society

ANSI - American National Standards Institute

AOAC - American Organization of Analytical Chemists

APH - American Public Health Association

ASTM - American Society for Testing and Materials

BSI - British Standards Institution

CAS - Chemical Abstracts Service (branch of the ACS)

ISO - International Organization of Standardization

NFPA - National Fire Protection

NIST - National Institute of Standards and Technology (formerly The National Bureau of Standards)