Reference number
ISO 4581:1994
International Standard
ISO 4581:1994
Plastics — Styrene/acrylonitrile copolymers — Determination of residual acrylonitrile monomer content — Gas chromatography method
Edition 2
1994-08
Read sample
ISO 4581:1994
10506
Published (Edition 2, 1994)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 4581:1994

ISO 4581:1994
10506
Language
Format
CHF 63
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Abstract

The principle of the method specified is dissolving a test portion in dimethylformamide and injecting a small volume of the solution into a gas chromatograph equipped with flame ionization detector to separate and detect the volatile components. The solvent contains a known amount of propionitrile or acetonitrile as an internal standard for quantitative evaluation. With this method, a lower detection limit of the order of 3 ppm of acrylonitrile in the copolymer may be expected. To obtain a lower detection limit of the order of 0,3 ppm to 0,4 ppm, an alternative method is specified in annex A.

General information

  •  : Published
     : 1994-08
    : International Standard confirmed [90.93]
  •  : 2
     : 8
  • ISO/TC 61/SC 9
    83.080.20 
  • RSS updates

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