ASTM E407 - 07e1

    Standard Practice for Microetching Metals and Alloys

    Active Standard ASTM E407 | Developed by Subcommittee: E04.01

    Book of Standards Volume: 03.01


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    Significance and Use

    This practice lists recommended methods and solutions for the etching of specimens for metallographic examination. Solutions are listed to highlight phases present in most major alloy systems.

    1. Scope

    1.1 This practice covers chemical solutions and procedures to be used in etching metals and alloys for microscopic examination. Safety precautions and miscellaneous information are also included.

    1.2 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 cautionary statements, see 6.1 and Table 2.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1193 Specification for Reagent Water

    E7 Terminology Relating to Metallography

    E2014 Guide on Metallographic Laboratory Safety


    ICS Code

    ICS Number Code 77.040.99 (Other methods of testing metals)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/E0407-07E01

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