PROFESSIONAL ASSOCIATIONS

American Society for Testing of Materials (ASTM)

The Association for Materials Protection and Performance (AMPP)

American Welding Society (AWS)

American Water Works Association (AWWA)

American Society of Mechanical Engineers (ASME)

American Gas Association (AGA)

Gas Technology Institute (GTI)

The National Fire Protection Association (NFPA)

The Minerals, Metal & Materials Society (TMS) 

METALLURGY AND MATERIALS 

Copper Development Association (CDA)

Materials Research Society (MRS)

Society of Plastics (SPI)

The American Ceramic Society (ACerS)

The Society of Plastics Engineers (SPE)

ENGINEERING

Pipe Line and Gas Journal online magazine

National Institute of Standards and Technology (NIST)

 OTHER USEFUL LINKS

New York State Department of Labor (NYSDOL)

Thomas Register of American Manufacturers

The World-Wide Web Virtual Library: Subject Catalogue

WebElements Periodic Table on the Net