ASTM-D531 › Historical Revision Information
Standard Test Method for Rubber Property-Pusey and Jones Indentation
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Scope
1.1 This test method covers the determination of the indentation of rubber or rubber-like materials by means of the Pusey and Jones type of plastometer. This apparatus is used to measure the depth of indentation of an indentor, under fixed force into the surface of a rubber specimen.
1.2 The values stated in SI units are to be regarded as the standards.
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.
Significance and Use
The Pusey and Jones indentation value is the depth of indentation, expressed in hundredths of a millimetre, of a ball 3.175 mm (0.1250 in.) in diameter under an expressed force of 9.8 N (2.2 lbf). This value may be used to compare the indentation resistance of rubber and rubber-like materials.
The indentation value obtained should not be confused with hardness as measured by Test Method D 1415
Keywords
hardness; indentation hardness; relative hardness; plastometer; ICS Number Code 83.060 (Rubber)
To find similar documents by ASTM Volume:
09.01 (Rubber, Natural and Synthetic -- General Test Methods; Carbon Black)
To find similar documents by classification:
83.060 (Rubber Raw rubber, see 83.040.10)
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Document Number
ASTM-D531-00(2005)
Revision Level
2000 R05 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
May 1, 2005
Document Type
Test Method
Page Count
4 pages
Committee Number
D11.10