This Standard specifies two methods for the determination of residual vinyl chlorine monomer (RVCM) in polyvinyl chlorine (PVC) with gas chromatographic method, i.e. Method A (liquid headspace gas chromatographic method) and Method B (solid headspace gas chromatographic method).
Method A of this Standard is applicable to the determination of residual vinyl chlorine monomer in homopolymer and copolymer resins of vinyl chloride and their products; Method B is applicable to the determination of residual vinyl chlorine monomer in copolymer resins of vinyl chloride.
Method B is the arbitration method for the homopolymer of vinyl chloride.
In this Standard, the minimum detection limit of Method A is 0.5 mg/kg, and the minimum detection limit of Method B is 0.1 mg/kg.
