API TR 977

ASTM C704 Test Variability Reduced to Allow Further Optimization of Erosion-resistant Refractories for Critical Oil Refining Applications, First Edition
standard by American Petroleum Institute, 02/01/2018

API TR 942-A

Materials, Fabrication, and Repair Considerations for Hydrogen Reformer Furnace Outlet Pigtails and Manifolds
standard by American Petroleum Institute, 06/01/2014

API TR 6MET

Metallic Material Limits for Wellhead Equipment Used in High Temperature for API 6A and 17D Applications, Second Edition
standard by American Petroleum Institute, 08/01/2018