This Practice describes the requirements for certification and prequalification of the refractory materials and accessories used to construct monolithic refractory linings in process equipment and piping. It provides a basis for: selection, purchase, and quality control of refractory materials and metal fiber reinforcement. Included are: the material property, testing, documentation, storage, and shipping requirements for industrial refractory lining materials and metal fiber reinforcement used to construct monolithic refractory linings. These materials can be installed by gunning, casting, pumping, or hand packing as specified.