ASTM D5668-21

3.1?These test methods are mainly intended for referee purposes but can also be used for quality control of rubber production.

3.2?The amount of volatiles can affect processing and cure characteristics of compounded rubber.

1.1?These test methods cover a hot mill method, two oven methods, and a press method for the determination of moisture and other volatile matter content in synthetic rubber.

1.2?Either oven method shall be used especially when the rubber is too tacky to be handled satisfactorily on a hot mill.

1.3?The press method shall be used for rubbers that are too crumbly to be retained satisfactorily on a laboratory mill.

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

1.5?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.