This part specifies the terms and definitions, classification, grades, specifications and markings, raw materials, requirements, test methods, inspection rules, markings and certificates, transportation, packaging and storage of asbestos-free fiber cement slabs. This section is applicable to cotton-free boards that have fire protection, heat insulation, moisture-proof and other requirements as interior wall panels, exterior wall panels, ceiling panels, carriages, offshore buildings, ship interior partitions and composite insulation board panel lights. Cotton-free board suitable for home decoration and other purposes.