This standard specifies the classification, marking, requirements, test methods and inspection rules for liners, shelves and corner plates in refractory compartments of composite rock wool boards. It is applicable to the design, manufacture and acceptance of liners, shelves and corner plates in compartments and living modules with refractory partition requirements on ships and marine engineering buildings. Several standard documents are cited, including Encasement storage and transportation diagram marks, Cold rolled steel plate size and shape standards, etc., to ensure the compliance of products in terms of fire resistance performance and structural design.