Attributes . ASME B31, ASTM B75, ASTM B88, IAPMO National Standard Plumbing Code (NSPC), IAPMO Uniform Mechanical Code (UMC), IAPMO Uniform Plumbing Code (UPC), ICC International Mechanical Code (IMC), ICC International Plumbing Code (IPC), ICC International Residential Code (IRC), NFPA 13, 13D, and 13R . Names