This International Standard specifies a method for the determination of vinyl chloride monomer in homopolymer
and copolymer resins of vinyl chloride and compounded materials. The method is based on sample dissolution
and headspace gas chromatography. Concentrations of vinyl chloride in the range 0,1 mg/kg to 3,0 mg/kg can
be determined.
A "dry method", suitable for PVC resins but not compounded materials, is widely used within the industry for
in-house determinations. A separate International Standard based on this methodology is under development.