ASTM G24-05

    Standard Practice for Conducting Exposures to Daylight Filtered Through Glass


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    1. Scope

    1.1 This practice evaluates the resistance of nonmetallic materials to solar radiation filtered through glass.

    1.2 For direct exposures, refer to Practice G 7.

    1.3 This practice is limited to the method of conducting the exposures. The preparation of test specimens and evaluation of results are covered in various standards for the specific materials.

    1.4 Exposure conducted according to this practice can use two types of exposure cabinets.

    1.4.1 Type AA cabinet that allows passive ventilation of specimens being exposed behind glass.

    1.4.2 Type BEnclosed cabinet with exterior painted black that allows no ventilation of specimens exposed behind glass. Exposures conducted using a Type B cabinet are typically referred to as "black box under glass exposures."

    1.5 Type A exposures of this practice are technically similar to Method B of ISO 877.

    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

    C1036 Specification for Flat Glass

    D3424 Practice for Evaluating the Relative Lightfastness and Weatherability of Printed Matter

    D4303 Test Methods for Lightfastness of Colorants Used in Artists Materials

    D6901 Specification for Artists Colored Pencils

    E824 Test Method for Transfer of Calibration From Reference to Field Radiometers

    E903 Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres

    E1084 Test Method for Solar Transmittance (Terrestrial) of Sheet Materials Using Sunlight

    G7 Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials

    G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials

    G173 Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37 Tilted Surface

    G177 Tables for Reference Solar Ultraviolet Spectral Distributions: Hemispherical on 37 Tilted Surface

    G201 Practice for Conducting Exposures in Outdoor Glass-Covered Exposure Apparatus with Air Circulation


    ICS Code

    ICS Number Code 59.080.01 (Textiles in general)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/G0024-05

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM G24-05, Standard Practice for Conducting Exposures to Daylight Filtered Through Glass, ASTM International, West Conshohocken, PA, 2005, www.astm.org

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