Standard Practice for Rubber Conditioning For Low-Temperature Testing
1.1 This practice describes the characteristic mechanical behavior of rubbers at low temperatures, and outlines the conditioning procedure necessary for testing at these temperatures.
1.2 One of the first stages in establishing a satisfactory technique for low temperature testing is the specification of the time and temperature of exposure of the test specimen. It has been demonstrated that any one or more of the following distinct changes, which are detailed in Table 1, may take place on lowering the test temperature:
1.2.1 Simple temperature effects,
1.2.2 Glass transitions, and
1.2.3 First order transitions (crystallization), and solubility and other effects associated with plasticizers.
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.
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