ISO 2303 pdf download Isoprene rubber (IR) — Non-oil-extended, solution-polymerized types — Evaluation procedures 1 Scope This International Standard specifies, for general-purpose non-oil-extended, solution-polymerized polyisoprene rubbers (IR): physical and chemical tests on raw rubbers; standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics. 2 Normative references The following referenced documents are indispensable for the...