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This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, marking, transportation and storage of light partition boards for buildings (hereinafter referred to as light partition boards). this standard is applicable to light-weight slats for non load bearing internal partition walls of industrial and civil buildings. 2 normative references 

 the provisions in the following documents become the provisions of this standard through the reference of this standard. For dated references, all subsequent amendments (excluding the contents of material errors) or revisions are not applicable to this standard. However, all parties to the agreement based on this standard are encouraged to study whether the latest version of these documents can be used. For undated references, the latest version is applicable to GB / t2828,1 sampling procedures by attributes Part 1 of this standard; Sampling plan for lot by lot inspection retrieved according to AQL 

 gb6566 radioactive limit of building materials 

 GB8624 classification of combustion performance of building materials and products 

 GB / t9978.1 fire resistance test methods for building components Part 1: General requirements 

 GB / t19889.3 Acoustics Measurement of sound insulation of buildings and building components Part 3: Laboratory measurement of airborne sound insulation of building components 

 terms and definitions 

 the following terms and definitions The meaning of this standard is applicable to the prefabricated slab with length width ratio not less than 2.5 and light weight panel made of light material or light structure, Prefabricated strip with area density less than or equal to the value specified in this standard, hollow panel, solid panel, void free prefabricated strip made of the same material, composite panel, prefabricated strip made of two or more different functional materials, tongue and groove rabbet Light weight slats can be divided into hollow slats, solid slats and composite slats according to the section tree, and can be divided into ordinary slats, solid slats and composite slats according to the component types of slats