This standard specifies the terms and definitions, classification, shape and dimensions, technical requirements, test methods, quality assessment procedures, packaging, marking, transportation, storage and quality certificates of multi-composite spinel bricks. This standard is applicable to multi-composite spinel bricks for smelting and refining of various top-blown furnaces, side-blown furnaces, bottom-blown furnaces, electric furnaces, etc. for non-ferrous metal smelting.