ISO 11337:2010
ISO 11337:2010

Status : Withdrawn

This standard has been revised by ISO 11337:2023


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.

General information

  •  : Withdrawn
     : 2010-12
    : Withdrawal of International Standard [95.99]
  •  : 2
     : 14
  • ISO/TC 61/SC 9
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