Abstract
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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General information
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Status: PublishedPublication date: 2018-06Stage: International Standard confirmed [90.93]
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Edition: 3Number of pages: 15
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Technical Committee :ISO/TC 61/SC 5ICS :83.080.01
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WithdrawnISO 15033:2007
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