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Significance and Use
3.1 Low temperatures are often needed for conditioning of rubber prior to testing, as well as during the test. Conditioning is required to attain a specific temperature that is uniform throughout the specimen or for producing time-dependent effects. Specimens may be conditioned and tested in the same or different chambers.
3.2 This practice is intended to apply particularly, but not exclusively, to the following ASTM Standards: Test Methods D746, D945, D1053, D1229, D1329, D1415, D2136, D2137, D2240, D2632, Practice D832, and Specification E197.
1.2 This practice describes the acceptable types and construction of low-temperature cabinets for conditioning and testing of rubber, the composition and circulation of heat-transfer media, and the required uniformity and precision of temperature control.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D746 Test Method for Brittleness Temperature of Plastics and Elastomers by Impact
D832 Practice for Rubber Conditioning For Low Temperature Testing
D945 Test Methods for Rubber Properties in Compression or Shear (Mechanical Oscillograph)
D1053 Test Methods for Rubber Property--Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics
D1229 Test Method for Rubber Property--Compression Set at Low Temperatures
D1329 Test Method for Evaluating Rubber Property--Retraction at Lower Temperatures (TR Test)
D1415 Test Method for Rubber Property--International Hardness
D2136 Test Method for Coated Fabrics--Low-Temperature Bend Test
D2137 Test Methods for Rubber Property--Brittleness Point of Flexible Polymers and Coated Fabrics
D2240 Test Method for Rubber Property--Durometer Hardness
D2632 Test Method for Rubber Property--Resilience by Vertical Rebound
E197 Specification for Enclosures and Servicing Units for Tests Above and Below Room Temperature
ICS Number Code 83.060 (Rubber)
UNSPSC Code 13100000(Rubber and elastomers)