Attributes . ABS: America Bureau of Shipping; ANSI/CAN/UL 213 (1/2 in to 3 in Only); ASME B31; ASME B31.1; ASME B31.3; ASME B31.9; ASTM A312; ASTM A554; BV (Bureau Veritas); CRN 13492.5 A/B/C; DNV-GL; FM Class 1920 (1/2 in to 2 in Only); IAPMO PS 117; IAPMO Uniform Mechanical . Names