http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
ASME guide for gas transmission and distribution piping systems
Guide for transmission and distribution piping systems
American Society of Mechanical Engineers
Vols. for 1970- compiled and approved by the ASME Gas Piping Committee.
Vols. for 1973- issued in loose-leaf format; kept up-to-date by numbered issues called Addenda.