ISO 4581:1994
p
ISO 4581:1994
10506

Abstract  Preview

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
  •  : 2
     : 8
  •  : ISO/TC 61/SC 9 Thermoplastic materials
  •  :
    83.080.20 Thermoplastic materials

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