An American National Standard. The American Society of Mechanical Engineers (ASME). Revision of ASME/ANSI B31.9-1988. 86p. This Code Section has rules for the piping in industrial, institutional,
commercial, and public buildings, and multi-unit residences, which does not require the range of sizes, pressures, and temperatures covered in B3 I. l. This Code prescribes requirements for the design, materials, fabrication, installation, inspection, examination, and testing of piping systems for building services. It includes piping systems in the building or within the property limits.