1.1 These test methods specify the standard materials, test formulas, mixing procedures, and test methods for the evaluation and production control of oil-extended polybutadiene rubber (OE-BR) polymerized in an appropriate solution.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.