ASTM E340: Standard Test Method for Macroetching Metals and Alloys
DOD Adopted ANSI Approved Approved
These test procedures describe the methods of macroetching metals and alloys to reveal their macrostructure.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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. For specific warning statements, see 6.2, 7.1, 8.1.3, 8.2.1, 8.8.3, 220.127.116.11, and 8.13.2.
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