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ISO 11337:2023

Plastics — Polyamides — Determination of ε-caprolactam and ω-laurolactam by gas chromatography

Jan 16, 2023

General information

60.60     Jan 16, 2023

ISO

ISO/TC 61/SC 9

International Standard

83.080.20  

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Scope

This document specifies a method for determining ε‑caprolactam and ω‑laurolactam in polyamides by gas chromatography. It is applicable particularly to the determination of ε‑caprolactam in polyamide 6 and ω‑laurolactam in polyamide 12.
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WITHDRAWN
ISO 11337:2010

NOW

PUBLISHED
ISO 11337:2023
60.60 Standard published
Jan 16, 2023