GB/T 13021-1991
AbolishedDetermination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis
聚乙烯管材和管件炭黑含量的测定 热失重法
Application Summary AI generated
This standard specifies a test method for determining the carbon black content in polyethylene pipes and fittings using calcination and pyrolysis (thermal gravimetric analysis). It is applied in the quality control and material verification of polyethylene products used in water supply, gas distribution, and industrial piping systems. The method ensures that the carbon black level meets specified requirements for UV resistance and mechanical performance.
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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.