ASTM A572-82
Standard Specification for High-Strength Low-Alloy Columbium-Vanadium steels of Structural Quality
standard by ASTM International, 01/01/1982
ASTM C971-82(1992)
Standard Guide for Selection and Application of Insulation Systems for Heating, Ventilating, and Air Conditioning Duct Work
standard by ASTM International, 01/01/1982