ASTM-D7690 › Complete Document History
Standard Practice for Microscopic Characterization of Particles from In-Service Lubricants by Analytical Ferrography
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2011 R21 EDITION - REAPPROVED IN 2021 - Nov. 2, 2021
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Obsolete Revision Information: |
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2011 R17 EDITION - REAPPROVED IN 2017 - July 1, 2017
2011 EDITION - FERROGRAPHY, STANDARD PRACTICE FOR - March 1, 2011 |