International Standard
ISO 11337:2023
Plastics — Polyamides — Determination of ε-caprolactam and ω-laurolactam by gas chromatography
Reference number
ISO 11337:2023
Edition 3
2023-01
© ISO 2024
International Standard
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Published (Edition 3, 2023)

ISO 11337:2023

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Language
CHF 63
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2023-01
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 11
  • Technical Committee :
    ISO/TC 61/SC 9
    ICS :
    83.080.20 
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