ASTM D5827 - 09e1

    Standard Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography

    Active Standard ASTM D5827 | Developed by Subcommittee: D15.04

    Book of Standards Volume: 15.05


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    Significance and Use

    This test method provides for the qualitative and quantitative determination of common anions in engine coolant in the milligrams per litre to low percent range and requires only a few millilitres or microlitres of sample per test, with results available in less than 30 min. Acceptable levels of chloride and other anions vary with manufacturer's blending specifications and applicable ASTM minimum or maximum specifications.

    1. Scope

    1.1 This test method covers the chemical analysis of engine coolant for chloride ion by high-performance ion chromatography (HPIC). Several other common anions found in engine coolant can be determined in one chromatographic analysis by this test method.

    1.2 This test method is applicable to both new and used engine coolant.

    1.3 Coelution of other ions may cause interferences for any of the listed anions. In the case of unfamiliar formulations, identification verification should be performed by either or both fortification and dilution of the sample matrix with the anions of interest.

    1.4 Analysis can be performed directly by this test method without pretreatment, other than dilution, as required by the linear ranges of the equipment. Table 1 indicates several applicable anions and approximate detection limits.

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

    1.6 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 its use.

    TABLE 1 Analytes and Minimum Detection Limits

    AnalyteDetection Limit, mg/LA
    Chloride (Cl) 2.0
    Nitrite (NO2) 5.0
    Bromide (Br) 4.0
    Nitrate (NO3) 7.1
    o-Phosphate (HPO4)220.0
    Sulfate (SO4)2 8.0
    Oxalate (C2O4)212.0

    A Determined using 100-μL sample volume. Sample diluted 99 + 1 (v/v) with chromatographic eluant 30-μS/cm full scale, suppressed conductivity detection. Dionex AS4ASC column with AG4ASC guard columns. Other systems will require MDL determinations using chosen dilution factors, eluants, columns, and detector.


    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

    D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes

    D1193 Specification for Reagent Water

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method


    ICS Code

    ICS Number Code 71.100.45 (Refrigerants and antifreezes)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/D5827-09E01a

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D5827-09e1, Standard Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography, ASTM International, West Conshohocken, PA, 2009, www.astm.org

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