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ISO 4581:1994

Plastics - Styrene/acrylonitrile copolymers - Determination of residual acrylonitrile monomer content - Gas chromatography method
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ISO 4581:1994

Plastics - Styrene/acrylonitrile copolymers - Determination of residual acrylonitrile monomer content - Gas chromatography method

PUBLISH DATE 1994
ISO 4581:1994

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.

SDO ISO: International Organization for Standardization
Document Number ISO 4581
Publication Date Jan. 1, 1994
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 61/SC 5/WG 10
Publish Date Document Id Type View
Jan. 1, 1994 ISO 4581:1994 Revision