Transcription of Standard Hardness Conversion Tables for Metals Relationship …
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Standard Hardness Conversion Tables for Metals Relationship …
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. Designation: E140 12b 1. Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness , Vickers Hardness , Rockwell Hardness , Superficial Hardness , Knoop Hardness , Scleroscope Hardness , and Leeb Hardness1. This Standard is issued under the fixed designation E140; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A. superscript epsilon ( ) indicates an editorial change since the last revision or reapproval.
NOTE 1—The comparative hardness test done to generate the conver-sion tables in this standard were performed in past years usingASTM test methods in effect at the time of testing. In some cases, the standards have changed in ways that could affect the final results. For example, currently both the Rockwell and Brinell hardness standards ...
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