1997GB/T 16867-1997 Determination of residual styrene monomer in polystyrene and acrylonitrile-butadiene-styrene resins by gas chromatography
1984GB/T 4614-1984 Determination of residual styrene monomer in polystyrene by gas chromatography
GB/T 4614-1984 was changed to GB/T 16867-1997 Determination of residual styrene monomer in polystyrene and acrylonitrile-butadiene-styrene resins by gas chromatography.