ASTM-A833 › Standard Test Method for Indentation Hardness of Metallic Materials by Comparison Hardness Testers
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1.1 This test method covers the determination of indentation hardness of metallic materials using comparison hardness testers.
1.2 This test method applies only to those portable comparison hardness testers that use test bars that have been standardized according to Test Method as a basis for comparison.
1.3 Calibration of test bars, used for comparison to determine hardness numbers, is also covered by this test method.
1.4 The impression force used during comparison hardness testing is normally an impact load applied by striking a hammer on the appropriate areas as outlined in the manufacturer's instructions.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Brinell hardness; comparative hardness; comparative hardness testers; metallic;; ICS Number Code 77.040.10 (Mechanical testing of metals)
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Dec. 1, 2017