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Norm

ISO 4581:1994

Ausgabedatum: 1994 07 21

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

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 wit...
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Herausgeber:
International Organization for Standardization
Format:
Digital | 8 Seiten
Sprache:
Englisch

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.

ISO 4581:1994
1994 07 21
Plastics — Styrene/acrylonitrile copolymers — Determination of residual acrylonitrile monomer conten...
Norm
ISO 4581:1987
1987 11 19
Plastics — Styrene/acrylonitrile copolymers — Determination of residual acrylonitrile monomer conten...
Norm