ASTM D511 - 14

    Standard Test Methods for Calcium and Magnesium In Water

    Active Standard ASTM D511 | Developed by Subcommittee: D19.05

    Book of Standards Volume: 11.01


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    Significance and Use

    4.1 Calcium and magnesium salts in water are the primary components of water hardness which can cause pipe or tube scaling.

    1. Scope

    1.1 These test methods cover the determination of calcium and magnesium in water by complexometric titration and atomic absorption spectrometric procedures. Two test methods are included, as follows:

     

    Sections

    Test Method A—Complexometric Titration

    7 – 15

    Test Method B—Atomic Absorption Spectrometric

    16 – 25

    1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversion to inch-pound units that are provided for information only and are not considered standard.

    1.3 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. Specific hazard statements are given in 12.2.6 and 20.6.


    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

    D1129 Terminology Relating to Water

    D1193 Specification for Reagent Water

    D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water

    D3370 Practices for Sampling Water from Closed Conduits

    D4691 Practice for Measuring Elements in Water by Flame Atomic Absorption Spectrophotometry

    D4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents

    D5810 Guide for Spiking into Aqueous Samples

    D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis


    ICS Code

    ICS Number Code 13.060.50 (Examination of water for chemical substances)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/D0511-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D511-14, Standard Test Methods for Calcium and Magnesium In Water, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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