American National Standards Institute (ANSI)
American Society of Mechanical Engineers (ASME)
American Water Works Association (AWWA)
American Society for Testing and Materials (ASTM)
Canadian Registration Numbers (CRN)
Factory Mutual (FM)
National Sanitation Foundation International (NSF)
U.S. Department of Defense (Military Specifications)
U.S. Food & Drug Administration (FDA)




American Petroleum Institute (API)

American Bureau of Shipping (ABS)
Det Norske Veritas (DNV)
Germanischer Lloyd (GL)
U.S. Coast Guard (USCG)




Underwriters Laboratories (UL)
Underwriters Laboratories of Canada (ULC)