D2000.16009.pdf - This international standard was developed in accordance with internationally recognized principles on standardization established in

D2000.16009.pdf - This international standard was developed...

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Designation: D2000 - 18 Approved by Society of Automotive Engineers SAE Recommended Practice J200 Standard Classification System for Rubber Products in Automotive Applications 1 This standard is issued under the fixed designation D2000; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ´ ) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense. 1. Scope 1.1 This classification system covers the properties of vul- canized rubber materials (natural rubber, reclaimed rubber, synthetic rubbers, alone or in combination) that are intended for, but not limited to, use in rubber products for automotive applications. N OTE 1—This classification system may serve many of the needs of other industries in much the same manner as SAE numbered steels. It must be remembered, however, that this system is subject to revision when required by automotive needs. It is recommended that the latest revision always be used. 1.2 This classification system is based on the premise that the properties of all rubber products can be arranged into characteristic material designations. These designations are determined by types , based on resistance to heat aging, and classes , based on resistance to swelling in oil. Basic levels are thus established which, together with values describing addi- tional requirements, permit complete description of the quality of all elastomeric materials. 1.3 In all cases where the provisions of this classification system would conflict with those of the detailed specifications for a particular product, the latter shall take precedence. N OTE 2—When the rubber product is to be used for purposes where the requirements are too specific to be completely prescribed by this classi- fication system, it is necessary for the purchaser to consult the supplier in advance, to establish the appropriate properties, test methods, and speci- fication test limits. 1.4 The values stated in SI units are to be regarded as standard. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 2. Referenced Documents 2.1 ASTM Standards: 2 D395 Test Methods for Rubber Property—Compression Set D412 Test Methods for Vulcanized Rubber and Thermoplas- tic Elastomers—Tension D429 Test Methods for Rubber Property—Adhesion to Rigid Substrates D430 Test Methods for Rubber Deterioration—Dynamic Fatigue D471 Test Method for Rubber Property—Effect of Liquids D573 Test Method for Rubber—Deterioration in an Air Oven D575 Test Methods for Rubber Properties in Compression D624
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  • Winter '17
  • pr. hassanzadeh

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