BS ISO 21257:2018
$142.49
Plastics. Polymer polyols for use in the production of polyurethane. Determination of the residual acrylonitrile and styrene monomer content by gas chromatography
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 24 |
This document specifies a method for the determination of the residual acrylonitrile monomer and styrene monomer in polymer polyols by gas chromatography.
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 |
| 10 | 5 Reagents and materials 6 Apparatus |
| 11 | 7 Preparation of calibration solution and sample solution 7.1 General 7.2 Method A for using OT column 7.2.1 Preparation of internal standard solution 7.2.2 Preparation of calibration solutions |
| 12 | 7.2.3 Preparation of sample solution 7.3 Method B for using packed column 7.3.1 Preparation of internal standard solution 7.3.2 Preparation of calibration solutions 7.3.3 Preparation of sample solution |
| 13 | 8 Procedure 8.1 Gas chromatographic procedure 8.2 Measurement of sample solutions and calibration solutions |
| 14 | 8.3 Evaluation of gas chromatographic peak 9 Expression of the results 9.1 Preparation of the calibration curve |
| 15 | 9.2 Calculation of results from a calibration graph |
| 16 | 9.3 Calculation of results from a single-point calibration 9.4 Acceptability of results and measurement sensitivity 10 Precision |
| 17 | 11 Test report |
| 18 | Annex A (informative) Typical analytical conditions |
| 20 | Annex B (informative) Typical examples of GC chromatogram |
| 22 | Annex C (informative) Precision |
| 23 | Bibliography |
