BS ISO 16014-4:2019 – TC:2020 Edition
$134.27
Tracked Changes. Plastics. Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography – High-temperature method
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 45 |
This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers by size-exclusion chromatography (SEC) using an organic eluent at temperatures between 60 °C and 220 °C (see Annex A). The average molecular weight and the molecular weight distribution are calculated from a calibration curve prepared using polymer standards. Therefore, this test method is classified as a relative method (see ISO 16014-1).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 25 | National foreword |
| 29 | Foreword |
| 30 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 31 | 5 Reagents 6 Apparatus 6.1 General |
| 32 | 7 Procedure 7.1 Preparation of solutions of molecular weight standards |
| 33 | 7.2 Preparation of sample solutions |
| 34 | 7.3 Preparation of solutions for column performance evaluation 7.4 Setting up the apparatus 7.5 Operating parameters 7.5.1 Flow rate 7.5.2 Injection masses and injection volumes 7.5.3 Temperature of, and dwell time in, injector 7.5.4 Column temperature |
| 35 | 7.5.5 Detector sensitivity 7.6 Number of determinations 8 Data acquisition and processing 9 Expression of results 10 Precision 10.1 General 10.2 Experimental conditions |
| 36 | 10.3 Results of interlaboratory tests 11 Test report |
| 37 | Annex A (informative) Further information on applicability of method |
| 38 | Annex B (informative) Further information on reagents |
| 39 | Annex C (informative) Interlaboratory test |
| 43 | Bibliography |
