ASTM C842-05

    Standard Specification for Application of Interior Gypsum Plaster

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    1. Scope

    1.1 This specification covers the minimum requirements for full-thickness (in accordance with Table 1) interior gypsum plastering on gypsum, metal, masonry, or monolithic concrete bases designed or prepared to receive gypsum plaster.

    1.1.1 Gypsum plaster applied to the interior side of exterior walls of masonry or concrete shall be isolated from the exterior wall.

    1.2 Gypsum plasters shall not be used in exterior locations or interior "wet" areas.

    Note 1—To secure desirable results, this specification should be coordinated with the provisions of Specification C 841. General information concerning full thickness gypsum plastering is contained in Annex A2, Annex A3, and Annex A4.

    1.3 Details of construction for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories.

    1.4 Details of construction to achieve required sound control shall be obtained from reports of tests conducted at recognized sound testing laboratories in accordance with the applicable sound tests of Test Methods E 90, C 423, or E 492.

    1.5 The values stated in inch-pound units are to be regarded as the standard. The SI (metric) values given in parentheses are approximate and are provided for information purposes only.

    1.6 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

    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

    C5 Specification for Quicklime for Structural Purposes

    C11 Terminology Relating to Gypsum and Related Building Materials and Systems

    C28/C28M Specification for Gypsum Plasters

    C35 Specification for Inorganic Aggregates for Use in Gypsum Plaster

    C59/C59M Specification for Gypsum Casting Plaster and Gypsum Molding Plaster

    C61/C61M Specification for Gypsum Keenes Cement

    C206 Specification for Finishing Hydrated Lime

    C423 Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

    C631 Specification for Bonding Compounds for Interior Gypsum Plastering

    C841 Specification for Installation of Interior Lathing and Furring

    C1489 Specification for Lime Putty for Structural Purposes

    E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

    E492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine

    ICS Code

    ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

    UNSPSC Code

    UNSPSC Code 30111701(Gypsum plaster)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/C0842-05

    Citation Format

    ASTM C842-05, Standard Specification for Application of Interior Gypsum Plaster, ASTM International, West Conshohocken, PA, 2005,

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