Standard Test Method for Rubber Property—Durometer …

Designation: D2240 15 Standard Test Method forRubber Property Durometer Hardness1 This Standard is issued under the fixed designation D2240; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon ( ) indicates an editorial change since the last revision or Standard has been approved for use by agencies of the Department of This test Method covers twelve types of Rubber hardnessmeasurement devices known as durometers: Types A, B, C, D,DO, E, M, O, OO, OOO, OOO-S, and R. The procedure fordetermining indentation hardness of substances classified asthermoplastic elastomers, vulcanized (thermoset) Rubber , elas-tomeric materials, cellular materials, gel-like materials, andsome plastics is also This test Method is not equivalent to other indentationhardness methods and instrument types, specifically thosedescribed in Test This test Method is not applicable to the testing ofcoated All materials, instruments, or equipment used for thedetermination of mass, force, or dimens

Standard Test Method for ... determination of mass, force, or dimension shall have trace-ability to the National Institute for Standards and Technology, ... penetration and is dependent on the elastic modulus and viscoelastic behavior of the material.

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