ISO 4581:1994
Plastics — Styrene/acrylonitrile copolymers — Determination of residual acrylonitrile monomer content — Gas chromatography method
OVERVIEW
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.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1994 |
| No. of Pages | 8 |
| ICS Classification | 83.080.20 Thermoplastic materials |
| Committee | ISO/TC 61/SC 9 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |