Abstract
PreviewThe 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.
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Status: PublishedPublication date: 1994-08
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Edition: 2Number of pages: 8
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- ICS :
- 83.080.20 Thermoplastic materials
Buy this standard
| Format | Language | |
|---|---|---|
| std 1 61 | ||
| std 2 61 | Paper |
- CHF61
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