This Practice describes the requirements for the certification and prequalification of ceramic fiber refractory materials used to construct refractory linings in fired heaters and other process equipment. It provides a basis for selection, purchase, and quality control of ceramic fiber refractory materials. Included are material property, testing, documentation, storage, packaging, and shipping requirements of the following types of ceramic fiber refractories:

a. Alkaline earth silicate ceramic fiber

b. Refractory ceramic fiber

c. Polycrystalline wool

This Practice does not include mineral wool, fiberglass, and other non-refractory fiber insulation, or rigid block refractory insulation materials.