BS ISO 2475:2011

Chloroprene rubber (CR). General-purpose types. Evaluation procedure. | Status: Superseded, Withdrawn

1 Scope This International Standard specifies, for general-purpose chloroprene rubbers (CRs):

• — physical and chemical tests on raw rubbers;
• — standard materials, standard test formulations, equipment and processing methods for evaluating the vulcanization characteristics.

General-purpose chloroprene rubbers fall into three broad classes based on the type of polymerization modifier used in their preparation:

1. a) sulfur-modified types;
2. b) mercaptan-modified types;
3. c) types modified by other products.

For class c), the procedure for either a) or b) may be followed.