ASTM D763 - 06(2019)

    Standard Specification for Raw and Burnt Umber Pigments

    Active Standard ASTM D763 | Developed by Subcommittee: D01.31

    Book of Standards Volume: 06.03

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    This specification covers raw and burnt umber pigments. The pigments could be in a dry or paste in oil form. Dry pigments should conform to the composition requirements for iron oxide content, calcium compound content, moisture and other volatile matter content, coarse particle content, and organic color content. Raw umber dry pigments should be in a soft, dry form and made from a hydrated iron oxide permeating a siliceous base and free of admixtures. Burnt umber dry pigments should be produced by raw amber calcination and free of admixtures. Paste in oil pigments should conform to the specified pigment content, nonvolatile vehicle content, moisture by distillation content, and coarse particle and skin content. Both raw and burnt umber paste in oil pigments should be made by thoroughly grinding the pigment with linseed oil with a small amount of wetting or dispersing agents.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the pigments commercially known as raw umber and burnt umber.

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.3 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

    D50 Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese

    D185 Test Methods for Coarse Particles in Pigments

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

    D387 Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller

    D1208 Test Methods for Common Properties of Certain Pigments

    ICS Code

    ICS Number Code 87.060.10 (Pigments and extenders)

    UNSPSC Code

    UNSPSC Code 31211503(Pigment paints)

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

    DOI: 10.1520/D0763-06R19

    Citation Format

    ASTM D763-06(2019), Standard Specification for Raw and Burnt Umber Pigments, ASTM International, West Conshohocken, PA, 2019,

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