ISO 11337:2023
International Standard
Current Edition
·
Approved on
16 January 2023
·
Plastics — Polyamides — Determination of ε-caprolactam and ω-laurolactam by gas chromatography
ISO 11337:2023 Files
null Pages
Current Edition
ISO 11337:2023 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.
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