EN ISO 11337:2010

Plastics - Polyamides - Determination of e-caprolactam and w-laurolactam by gas chromatography (ISO 11337:2010)

Publication date:   Oct 17, 2011

General information

99.60 Withdrawal effective   Feb 1, 2023

CEN

CEN/TC 249 Plastics

European Norm

83.080.20   Thermoplastic materials

Buying

Published

Language in which you want to receive the document.

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

WITHDRAWN
EN ISO 11337:2004

WITHDRAWN
EN ISO 11337:2004/AC:2009

NOW

WITHDRAWN
EN ISO 11337:2010
99.60 Withdrawal effective
Feb 1, 2023

REVISED BY

PUBLISHED
EN ISO 11337:2023