ASTM-D2240 Standard Test Method for Rubber Property—Durometer Hardness

ASTM-D2240 - 2015 R21 EDITION - CURRENT
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Standard Test Method for Rubber Property—Durometer Hardness
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Scope

1.1 This test method describes eight types of rubber hardness measurement devices known as durometers: types A, B, C, D, DO, O, OO and M. The procedure for determining indentation hardness of substances classified as thermoplastic elastomers, vulcanized (thermoset) rubber, elastomeric materials, cellular materials, and some plastics is also described.

1.2 This test method is not equivalent to other indentation hardness methods and instrument types, specifically those described in Test Method D 1415.

1.3 This test method is not applicable to the testing of coated fabrics.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Many of the stated dimensions in SI are direct conversions from the U. S. Customary System to accommodate the instrumentation, practices and procedures that existed prior to the Metric Conversion Act of 1975.

1.5 All materials, instruments, or equipment used for the determination of mass, force or dimension shall have traceability to the National Institute for Standards and Technology, or other internationally recognized organization parallel in nature.

1.6 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.

Keywords

durometer; durometer hardness; hardness; indentation hardness; micro durometer hardness; 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-D2240-15R21

Revision Level

2015 R21 EDITION

Status

Current

Modification Type

Revision

Publication Date

July 23, 2021

Document Type

Test Method

Page Count

13 pages

Committee Number

D11.10