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ISO 11337:2004

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

Standard Details

ISO 11337:2004 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.

Method A is suitable for the determination of epsilon-caprolactam and method B for epsilon-caprolactam and omega-laurolactam.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 11337:2004
Document Year: 2004
Pages: 14
Edition: 1

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ISO 11337:2004
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