GB/T 21993-2008
ActivePolyvinyl chloride resins - Determination of the content of methanol or ethanol extract
聚氯乙烯树脂 甲醇或乙醇萃取物含量的测定
Application Summary AI generated
This standard specifies a method for determining the amount of methanol or ethanol extractable material in polyvinyl chloride (PVC) resins. It is applied in the plastics industry for quality control and raw material testing, particularly to assess the level of residual monomers, additives, or impurities that can be removed by alcohol extraction. The test is relevant for manufacturers and users of PVC resins to ensure product purity and consistency in applications such as pipes, films, and cable insulation.
Related Standards
GB/T 7141-2008
Plastics—Methods of heat aging
GB/T 9350-2003
Plastics--Homopolymer andcopolymer resins of vinyl chloride--Determination of pH of aqueous extract
GB/T 19276.1-2003
Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium--Method by measuring the oxygen demand in a closed respirometer
GB/T 12004.4-2003
Polyvinyl chloride paste--Determination of apparent viscosity by the Brookfield test method
GB/T 19276.2-2003
Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium--Method by analysis of evolved carbon dioxide
GB/T 19275-2003
Evaluation of the potential biodegradability and disintegration of plastic materials by the action of the specific microorganisms
GB/T 12000-2003
Determination of the effects of exposure to damp heat，water spray and salt mist for plastics
GB/T 17931-2003
Poly(ethylene terephthalate)(PET)resin for bottles
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.