ASTM D531-15 PDF

Scope: 3.1 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.

3.2 The indentation value obtained should not be confused with hardness as measured by Test Method D1415, since in the latter test the rubber immediately adjacent to the indentor is precompressed.

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 specimen.

1.2 The values stated in SI units are to be regarded as the standard.

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.

ASTM D531-15 Referenced Document

ASTM D1349 Standard Practice for Rubber-Standard Temperatures for Testing
ASTM D1415 Standard Test Method for Rubber Property—International Hardness
ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries

2019 ASTM D531-15(2019) Standard Test Method for Rubber Property—Pusey and Jones Indentation
2015 ASTM D531-15 Standard Test Method for Rubber Property&x2014;Pusey and Jones Indentation
2010 ASTM D531-00(2010) Standard Test Method for Rubber Property-Pusey and Jones Indentation
2000 ASTM D531-00(2005) Standard Test Method for Rubber Property-Pusey and Jones Indentation
2000 ASTM D531-00 Standard Test Method for Rubber Property-Pusey and Jones Indentation
2000 ASTM D531-89(1999) Standard Test Method for Rubber Property-Pusey and Jones Indentation