API TR 981 pdf download Thermal Expansion Under Load and Creep of Refractories—An Evaluation and Comparison of Testing Methods 1 Scope 1.1This report documents the results of thermal expansion under load (TEUL) and creep in compressiontesting conducted by ASTM C832 and DIN 993-9(same test as ISO 3187). 1.2The prime objective for this study is to determine if one or both...