BS ISO 7725:2020
$142.49
Rubber and rubber products. Determination of chlorine and bromine content
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 30 |
This document specifies methods for the determination of chlorine and/or bromine present in raw rubber as well as vulcanized or unvulcanized rubber compounds.
The methods are applicable to natural rubbers and to the following synthetic rubbers: isoprene, styrene-butadiene, butadiene, butyl, halogenated butyl, nitrile, ethylene-propylene, chloroprene and epichlorohydrin.
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 Sample preparation 5.1 Sampling 5.2 Sample solutions 6 Method A — Ion chromatography 6.1 Reagents |
| 11 | 6.2 Apparatus 6.3 Determination 6.3.1 Setting up the ion chromatograph 6.3.2 Preparation of the calibration curve 6.3.3 Measuring blank solutions and sample solutions |
| 12 | 6.4 Calculation 7 Method B — Potentiometric titration 7.1 Reagents |
| 13 | 7.2 Apparatus 7.2.3 Automatic titrator. 7.3 Determination |
| 14 | 7.4 Calculation |
| 15 | 8 Precision 9 Test report |
| 16 | Annex A (normative) Preparation of sample solutions by the tubular furnace combustion method |
| 19 | Annex B (normative) Preparation of sample solutions by the oxygen combustion flask method |
| 22 | Annex C (normative) Preparation of sample solutions by the oxygen combustion bomb method |
| 24 | Annex D (informative) Conditions for ion chromatography |
| 26 | Annex E (informative) Precision results from an interlaboratory test programme |
| 28 | Bibliography |
