标准编号：ISO 15033:2018
中文名称：塑料 高性能液体色谱法（HPLC）测定己内酰胺和其环状和线形低聚物
英文名称：Plastics — Determination of caprolactam and its cyclic and linear oligomers by HPLC
发布日期：2018-06
标准范围
This document describes a high-performance liquid chromatography (HPLC) method for determining the concentrations of cyclic oligomers of caprolactam, from 0,01 % by mass upwards, and linear oligomers of caprolactam, from 5 mg/kg upwards, both up to and including the hexamer of caprolactam (n = 6), in samples of polyamide 6, caprolactam and mixtures of rearrangement products in water. A second, significantly faster, HPLC method is included for determination of caprolactam and its cyclic dimer, based on the same principle and using the same equipment as the first method.
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