Significance and Use These test methods are mainly intended for
referee purpose but may be used for quality control of rubber
production. They may also be used in research and development
work and for comparison of different rubber samples in a
standard formula. These test methods may be used to obtain
values for acceptance of rubber. 1.1 These test methods cover
the standard materials, test formula, mixing procedures, and
test methods for the evaluation and production control of non-
halogenated isobutene-isoprene rubbers (IIR), commonly known as
butyl rubber. 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 does not purport to
address all of the safety concerns, if any, 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. 2.
Referenced Documents (purchase separatel