CEN - EN ISO 11337
Plastics - Polyamides - Determination of e-caprolactam and ω-laurolactam by gas chromatography
| Organization: | CEN |
| Publication Date: | 1 February 2023 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Thermoplastic materials): | 83.080.20 |
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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