ASTM-E972 › Historical Revision Information
Standard Test Method for Solar Photometric Transmittance of Sheet Materials Using Sunlight
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1.1 This test method covers the measurement of solar photometric transmittance of materials in sheet form. Solar photometric transmittance is measured using a photometer (illuminance meter) in an enclosure with the sun and sky as the source of radiation. The enclosure and method of test is specified in Test Method E 1175 (or Test Method E 1084).
1.2 The purpose of this test method is to specify a photometric sensor to be used with the procedure for measuring the solar photometric transmittance of sheet materials containing inhomogeneities in their optical properties.
1.3 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.
photometer; sheet materials; solar luminous transmittance; solar photometric transmittance; sunlight; transmittance; ICS Number Code 17.180.20 (Colours and measurement of light)
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April 10, 1996