GB/T 39818-2021
ActivePlastics—Thermosetting moulding materials—Determination of shrinkage
塑料 热固性模塑材料 收缩率的测定
Application Summary AI generated
This standard specifies test methods for determining the shrinkage of thermosetting moulding materials after molding. It is applied in the plastics industry for quality control and material specification, particularly for manufacturers and users of thermosetting resins in applications like electrical components, automotive parts, and household appliances. The standard ensures consistent dimensional accuracy and performance by measuring both linear and post-molding shrinkage under defined conditions.
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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.