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ISO 11337:2010

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

General information

90.92     Sep 22, 2021

ISO

ISO/TC 61/SC 9

International Standard

83.080.20  

Scope

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:

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.


Life cycle

PREVIOUSLY

Revises
ISO 11337:2004

Revises
ISO 11337:2004/Cor 1:2007

NOW

PUBLISHED
ISO 11337:2010
90.92 Standard to be revised
Sep 22, 2021

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