ASTM E815 - 11

    Standard Test Method for Determination of Calcium Fluoride in Fluorspar by Complexometric Titrimetry

    Active Standard ASTM E815 | Developed by Subcommittee: E01.02

    Book of Standards Volume: 03.05


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    ASTM E815

    Significance and Use

    Fluorspar is used as a flux in steelmaking, glass industry, and manufacture of hydrofluoric acid.

    This test method is intended to be used for compliance with compositional specifications for calcium fluoride content. It is assumed that all who use these procedures 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 and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882.

    1. Scope

    1.1 This test method covers the determination of calcium fluoride in acid-grade fluorspar and other types of fluorspar that can be rendered soluble by the procedure described in the test method.

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

    1.3 This test method has been evaluated in accordance with Practice E1601 and Guide E1763. Unless otherwise noted in the precision and bias section, the lower limit in the scope of each method specifies the lowest analyte content that may be analyzed with acceptable error (defined as a nominal 5 % risk of obtaining a 50 % or larger relative difference in results on the same test sample in two laboratories).

    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 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

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

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

    E276 Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related Materials

    E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory

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

    E1763 Guide for Interpretation and Use of Results from Interlaboratory Testing of Chemical Analysis Methods


    ICS Code

    ICS Number Code 73.080 (Non-metalliferrous minerals)

    UNSPSC Code

    UNSPSC Code 11101524(Fluorspar); 41115602(Titration equipment)


    DOI: 10.1520/E0815-11

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