BS ISO 15033:2018
$142.49
Plastics. Determination of caprolactam and its cyclic and linear oligomers by HPLC
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 24 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents |
| 11 | 6 Apparatus |
| 12 | 7 Test sample 8 Procedure 8.1 Calibration 8.1.1 Method A |
| 13 | 8.1.2 Method B 8.2 Determination 8.2.1 Method A |
| 15 | 8.2.2 Method B 9 Calculations 9.1 Calculation of calibration factors 9.1.1 Calibration factors for cyclic oligomers |
| 16 | 9.1.2 Calibration factors for linear oligomers 9.2 Test sample 9.2.1 Calculation of cyclic oligomer concentrations |
| 17 | 9.2.2 Calculation of linear oligomer concentrations 10 Precision |
| 18 | 11 Test report |
| 19 | Annex A (normative) HPLC parameters and injector programme — Using eluent A |
| 20 | Annex B (normative) HPLC parameters and injector programme — Using eluent B |
| 21 | Annex C (informative) Schematic diagram of HPLC apparatus |
| 22 | Bibliography |
