ASTM G67-99

    Standard Test Method for Determining the Susceptibility to Intergranular Corrosion of 5XXX Series Aluminum Alloys by Mass Loss After Exposure to Nitric Acid (NAMLT Test)

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    1. Scope

    1.1 This test method describes a procedure for constant immersion intergranular corrosion testing of 5XXX series aluminum alloys.

    1.2 This test method is applicable only to wrought products.

    1.3 This test method covers type of specimen, specimen preparation, test environment, and method of exposure.

    1.4 The values stated in SI units are to be regarded as the standard.

    1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.


    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

    G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens


    ICS Code

    ICS Number Code 77.120.10 (Aluminium and aluminium alloys)

    UNSPSC Code

    UNSPSC Code 11172000(Aluminum based alloys)


    DOI: 10.1520/G0067-99

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