ASTM D3450 - 00(2010)e1

    Standard Test Method for Washability Properties of Interior Architectural Coatings

    Active Standard ASTM D3450 | Developed by Subcommittee: D01.42

    Book of Standards Volume: 06.02


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    ASTM D3450

    Significance and Use

    Interior architectural paints are often discolored by dirt and other soilant materials. This test method covers the relative ease and completeness of removal of a specific soilant from such a surface by scrubbing. The greater the ease of soil removal with a minimum of film erosion, the greater the useful service life is expected to be.

    Results obtained by this test method do not necessarily correlate with all types of soilants.

    Semigloss finishes generally require only the nonabrasive type cleaner for good soilant removal, whereas flat paints may require the abrasive type.

    1. Scope

    1.1 This test method covers the determination of the relative ease of removing soilant discolorations from the dried film of an interior coating by washing with either an abrasive or nonabrasive cleaner.

    1.2 This test method is limited to coatings having a CIE-Y reflectance of 60 % or more, as measured in accordance with Test Method E1347.

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

    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

    D562 Test Method for Consistency of Paints Measuring Krebs Unit (KU) Viscosity Using a Stormer-Type Viscometer

    D1193 Specification for Reagent Water

    D1210 Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type Gage

    E70 Test Method for pH of Aqueous Solutions With the Glass Electrode

    E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry


    ICS Code

    ICS Number Code 87.040 (Paints and varnishes)

    UNSPSC Code

    UNSPSC Code 46181533(Protective coats)


    DOI: 10.1520/D3450-00R10E01

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