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.
Status: PublishedPublication date: 2018-06
Edition: 3Number of pages: 15
Technical Committee: ISO/TC 61/SC 5 Physical-chemical properties
- ICS :
- 83.080.01 Plastics in general
Buy this standard
|std 1 92||PDF + ePub|
|std 2 92||Paper|
A standard is reviewed every 5 years
Stage: 90.20 (Under review)
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.