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ISO 11337:2004

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

May 13, 2004
95.99   Withdrawal of Standard   Nov 26, 2010

General information

95.99     Nov 26, 2010

ISO

ISO/TC 61/SC 5

International Standard

83.080.20  

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Scope

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:
Method A is an extraction method with boiling methanol, and the extract is injected into a gas chromatograph.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.

Life cycle

NOW

WITHDRAWN
ISO 11337:2004
95.99 Withdrawal of Standard
Nov 26, 2010

CORRIGENDA / AMENDMENTS

WITHDRAWN
ISO 11337:2004/Cor 1:2007

REVISED BY

WITHDRAWN
ISO 11337:2010