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Full Description

ISO 11337:2010 specifies a method for determining epsilon-caprolactam and omega-laurolactam in polyamides by gas chromatography. It is suitable particularly for the determination of epsilon-caprolactam in polyamide 6 and omega-laurolactam in polyamide 12. Bearing in mind that gas chromatography offers a wide range of possible conditions, the method specified is that shown to have been suitable in practice.

Two variants of the basic method are specified:

  1. Method A is an extraction method with boiling methanol, and the extract is injected into a gas chromatograph.
  2. Method B is a method using a solvent, and the solution is injected into a gas chromatograph.
 

Document History

  1. ISO 11337:2023


    Plastics - Polyamides - Determination of -caprolactam and -laurolactam by gas chromatography

    • Most Recent
  2. ISO 11337:2010

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    Plastics - Polyamides - Determination of e-caprolactam and w-laurolactam by gas chromatography

    • Historical Version
  3. ISO 11337/Cor1:2007


    Corrigendum

    • Historical Version
  4. ISO 11337:2004


    Plastics - Polyamides - Determination of e-caprolactam and w-laurolactam by gas chromatography

    • Historical Version