Related Links

ASTM – American Society for Testing and Materials     http://www.astm.org/

ASME – American Society of Mechanical Engineers     http://www.asme.org/

API – American Petroleum Institute     http://www.api.org/

ANSI – American National Standards Institute     http://www.ansi.org/

ASA – American Supply Association       http://www.asa.net/

MSS – Manufacturers Standardization Society     http://mss-hq.org

VMA – Valve Manufacturer's Association of America     http://www.vma.org/