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    ASTM C285 - 10(2020)

    Standard Test Methods for Sieve Analysis of Wet-Milled and Dry-Milled Porcelain Enamel

    Active Standard ASTM C285 | Developed by Subcommittee: B08.12

    Book of Standards Volume: 02.05

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    Significance and Use

    3.1 The fineness of the frit has a direct bearing on many of its properties, such as fusibility, tearing, gloss, opacity, suspension in the slip, and ease of spraying.

    1. Scope

    1.1 These test methods cover the determination of the fineness of frit in wet- or dry-milled porcelain enamels and other ceramic coatings for metals by means of the No. 200 (75-μm) or No. 325 (45-μm) sieve.

    1.2 The two methods appear as follows:




       Method A—Referee Method
       Method B—Routine Method

     4 to 9 
    10 to 14

    1.3 Method A is intended for use where a referee method of higher accuracy is required, while Method B is intended to meet the needs of normal enamel plant production control operations where a rapid, simplified method of sieve testing is required. The accuracy of the simplified method has proved to be entirely adequate for this use. The simplified test, however, is not recommended where high accuracy is required.

    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

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    ICS Code

    ICS Number Code 25.220.50 (Enamels)

    UNSPSC Code

    UNSPSC Code

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

    DOI: 10.1520/C0285-10R20

    Citation Format

    ASTM C285-10(2020), Standard Test Methods for Sieve Analysis of Wet-Milled and Dry-Milled Porcelain Enamel, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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