BS ISO 17257:2020
$142.49
Rubber. Identification of polymers. Pyrolytic gas-chromatographic method using mass-spectrometric detection
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 26 |
This document provides a qualitative method for the identification of rubbers by their pyrolysis products using tandem gas-chromatography/mass spectrometry.
The method applies to rubbers in the raw state and to unvulcanized and vulcanized compounds. Compounds can be based on a single rubber or a blend of two or more rubbers. Where the level of a particular rubber in a blend is <10 %, detection and identification can be difficult.
A non-restrictive list of rubbers is given in Clause 4.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 List of rubbers 4.1 Group M 4.1.1 Chloropolyethylene (CM) 4.1.2 Chlorosulfonylpolyethylene (CSM) 4.1.3 Ethylene-propylene copolymer (EPM) and Ethylene-propylene-diene terpolymer (EPDM) |
| 10 | 4.1.4 Fluorocarbon rubber having substituent fluoro, perfluoroalkyl, or perfluoroalkoxy groups on the polymer chain (FKM) 4.2 Group O 4.2.1 Homopolymer of epichlorhydrin (CO), copolymer of epichlorhydrin-ethylene oxide (ECO), terpolymer of epichlorhydrin-ethylene oxide-allyl glycidyl ether (GECO) 4.3 Group Q 4.3.1 Polysiloxanes (MQ, VMQ, PVMQ) 4.4 Group R 4.4.1 Butadiene rubber (BR) 4.4.2 Chloroprene rubber (CR) 4.4.3 Isobutene-isoprene rubber (IIR), chlorinated IIR (CIIR) and brominated IIR (BIIR) 4.4.4 Natural rubber (NR) and synthetic isoprene rubber (IR) 4.4.5 Acrylonitrile-butadiene rubber (NBR), hydrogenated NBR (HNBR) and carboxylated NBR (XNBR) 4.4.6 Styrene-butadiene rubber (SBR) 4.5 Rubber blends 5 Principle |
| 11 | 6 Reagents 7 Equipment |
| 12 | 8 Operating conditions 8.1 General 8.2 Gas chromatograph adjustment 8.3 Extraction 8.4 Test portion 8.5 Pyrolysis 9 Interpretation of results 9.1 General |
| 13 | 9.2 Group M 9.2.1 Chloropolyethylene (CM) and chlorosulfonylpolyethylene (CSM) 9.2.2 Ethylene-propylene copolymer (EPM) and Ethylene-propylene-diene terpolymer (EPDM) 9.2.3 Fluorocarbon rubber having substituent fluoro, perfluoroalkyl, or perfluoroalkoxy groups on the polymer chain (FKM) 9.3 Group O 9.3.1 Homopolymer of epichlorhydrin (CO), copolymer of epichlorhydrin-ethylene oxide (ECO), terpolymer of epichlorhydrin-ethylene oxide-allyl glycidyl ether (GECO) 9.4 Group Q 9.4.1 Polysiloxanes (MQ, VMQ, PVMQ) 9.5 Group R 9.5.1 Butadiene rubber (BR) |
| 14 | 9.5.2 Chloroprene rubber (CR) 9.5.3 Isobutene-isoprene rubber (IIR), chlorinated IIR (CIIR) and brominated IIR (BIIR) 9.5.4 Natural rubber (NR) or synthetic isoprene rubber (IR) 9.5.5 Acrylonitrile-butadiene rubber (NBR), hydrogenated NBR (HNBR) and carboxylated NBR (XNBR) 9.5.6 Styrene-butadiene rubber (SBR) 10 Test report |
| 16 | Annex A (informative) Schematic diagram of the chromatographic equipment |
| 17 | Annex B (informative) Examples of operating conditions |
| 18 | Annex C (informative) Chromatogram examples |
| 20 | Annex D (informative) Chemical compounds identified in rubber pyrolysates |
