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 10TR3

Temperatures for API Cement Operating Thickening Time Tests – 1993 Report from the API Task Group on Cementing Temperature Schedules
standard by American Petroleum Institute, 05/01/1999

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