ASTM D3256 - 86(2020)

    Standard Test Methods for Chemical Analysis of Phthalocyanine Blue and Green Pigments

    Active Standard ASTM D3256 | Developed by Subcommittee: D01.31

    Book of Standards Volume: 06.03

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    Significance and Use

    3.1 These test methods are suitable for determining if impurities are present and establishing that the required pigments are present. These test methods may be used for manufacturing and purchasing quality control.

    1. Scope

    1.1 These test methods cover procedures for the qualitative chemical analysis of pigments known commercially as copper phthalocyanine blue and green.

    1.2 The procedures appear in the following order:





    Moisture and Other Volatile Matter


    Detection of Basic Dye Derivatives


    Detection of Other Organic Coloring Matter


    Detection of Ultramarine Blue


    Detection of Iron Blue or Chrome Green


    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 the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments

    D1193 Specification for Reagent Water

    ICS Code

    ICS Number Code 87.060.10 (Pigments and extenders)

    UNSPSC Code

    UNSPSC Code 12171605(Organic pigments)

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

    DOI: 10.1520/D3256-86R20

    Citation Format

    ASTM D3256-86(2020), Standard Test Methods for Chemical Analysis of Phthalocyanine Blue and Green Pigments, ASTM International, West Conshohocken, PA, 2020,

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