This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of extruded polypropylene foam sheets. This standard is applicable to non-crosslinked single-layer sheets with a cellular structure and an apparent density of 200 kg/m to 800 kg/m, which are produced by heating and extrusion molding using polypropylene resin as the main component, adding a small amount of additives. . This standard does not apply to composite sheets composed of polypropylene and other materials.
QB/T 4879-2015 Referenced Document
GB 9685-2008 Hygienic standards for uses of additives in food containers and packaging materials
GB 9688-1988 Hygienic standard for polypropyrene products used as food containers and tablewares
GB/T 1040.2-2006 Plastics. Determination of tensile properties. Part 2: Test conditions for moulding and extrusion plastics
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing
GB/T 6342-1996 Cellular plastics and rubbers--Determination of linear dimensions
GB/T 6343-2009 Cellular plastics and rubbers.Determination of apparent density
GB/T 8811-2008 Rigid cellular plastics.Test method for dimensionsl stability
GB/T 9341-2008 Plastic.Determination of flexural properties
QB/T 1130-1991 Test method for right-angle tear properties of plastics
QB/T 2669-2004 Test method for water absorption of cellular plastics