GB/T 40921-2021
ActiveExpanded polypropylene（PP-E）beads
发泡聚丙烯（PP-E）珠粒
Application Summary AI generated
GB/T 40921-2021 specifies the classification, technical requirements, test methods, inspection rules, and packaging for expanded polypropylene (PP-E) beads. It is applied in the manufacturing of lightweight, impact-resistant foam products such as automotive interior parts, packaging materials, and thermal insulation components. The standard ensures consistent quality and performance for PP-E beads used in industries like automotive, logistics, and construction.
Related Standards
GB/T 10655-2003
Polymeric materials，cellular flexible--Determination of air flow permeability
GB/T 18945-2003
Polymeric materials，cellular flexible--Method of assessment of air flow value at constant pressure-drop
GB/T 18942.2-2003
Flexible cellular polymeric materials--Determination of stress-strain characteristicsin compression--Part 2: High density maternals
GB/T 18942.1-2003
Polymeric material，cellular flexible--Determination of stress-strain characteristic in compression--Part 1: Low density materials
GB/T 18941-2003
Flexible cellular polymeric materials--Determination of fatigue by constant-load pounding
GB/T 14274-2003
Polymeric materials，cellular flexible--Accelerated ageing tests
GB/T 12825-2003
Polymeric materials，cellular flexible--Determination of hardness by indentation technique
GB/T 18944.1-2003
Flexible cellular polymeric materials--Sponge and expanded cellular rubber products--Part 1:Sheeting
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.