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    ASTM E367 - 16

    Standard Test Methods for Chemical Analysis of Ferroniobium

    Active Standard ASTM E367 | Developed by Subcommittee: E01.01

    Book of Standards Volume: 03.05

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    Significance and Use

    4.1 These test methods for the chemical analysis of ferroniobium alloy are primarily intended to test such materials for compliance with compositional specifications such as Specification A550. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

    1. Scope

    1.1 These test methods cover the chemical analysis of ferroniobium having chemical compositions within the following limits:



    Composition, %



    2.00 max



    0.30 max



    2.00 max



    0.25 max



    0.01 max



    3.00 max



    40.00 to 75.00



    0.05 max



    4.00 max



    0.03 max



    7.00 max



    0.15 max



    5.00 max



    0.50 max

    1.2 The test methods appear in the following order:



    Separation of Niobium, Tantalum, and Titanium by the Ion-Exchange Test Method

    15 and 16



    Titanium by the Spectrophotometric Test Method [0.05 % to 5.0 %]

    17 – 21



    Niobium by the Gravimetric Test Method [40 % to 75 %]

    22 – 23



    Tantalum by the Gravimetric Test Method [1 % to 7 %]

    24 – 25



    Tantalum by the Spectrophotometric Test Method [0.25 % to 1 %]

    26 – 30

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6, and specific warning statements in 11.1.

    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

    A550 Specification for Ferrocolumbium (Ferroniobium)

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E32 Practices for Sampling Ferroalloys and Steel Additives for Determination of Chemical Composition

    E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

    E60 Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry

    E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

    E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals

    E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method

    ICS Code

    ICS Number Code 77.040.30 (Chemical analysis of metals)

    UNSPSC Code

    UNSPSC Code 11101712(Ferrous alloy)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E0367-16

    Citation Format

    ASTM E367-16, Standard Test Methods for Chemical Analysis of Ferroniobium, ASTM International, West Conshohocken, PA, 2016, www.astm.org

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