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Standard Practice for Rubber Conditioning For Low Temperature TestingTranslate name
STANDARD published on 1.6.2018
Designation standards: ASTM D832-07(2018)
Publication date standards: 1.6.2018
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
brittleness, brittle point, crystallization, enthalpy, first order transition, glass transition, low temperature test, modulus, plasticizer effects, resilience, second order transition, simple temperature effects, solubility, stiffening, subnormal temperature, thermodynamic change, viscoelasticity,, ICS Number Code 83.040.10 (Latex and raw rubber)
|Significance and Use|
3.1 Low temperature testing of rubber can yield repeatable results only if the preconditioning of the samples is consistent. Properties such as brittleness and modulus are greatly affected by variations in time/temperature exposures. This practice is intended to provide uniform conditioning for the various low temperature tests conducted on rubbers.
1.1 This practice covers 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 , 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
|2. Referenced Documents|
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