ASTM-E971 Standard Practice for Calculation of Photometric Transmittance and Reflectance of Materials to Solar Radiation

ASTM-E971 - 2011 R19 EDITION - CURRENT
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Standard Practice for Calculation of Photometric Transmittance and Reflectance of Materials to Solar Radiation
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Scope

1.1 This practice describes the calculation of luminous (photometric) transmittance and reflectance of materials from spectral radiant transmittance and reflectance data obtained from Test Method E903.

1.2 Determination of luminous transmittance by this practice is preferred over measurement of photometric transmittance by methods using the sun as a source and a photometer as detector except for transmitting sheet materials that are inhomogeneous, patterned, or corrugated.

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 .

Keywords

Celestories; Fenestration; Glazed apertures; Photometric reflectance; Photometric transmittance; Reflectance and reflectivity;emsolar devices; Seals/sealants; Skylights; Solar energy; Solar spectral irradiance; Transmittance and reflectance;emsolar devices; Windows/window assemblies; photometric transmittance/reflectance of materials to solar radiation,; practice,;Order Form

To find similar documents by ASTM Volume:

12.02 (Nuclear (II), Solar, and Geothermal Energy)

To find similar documents by classification:

27.160 (Solar energy engineering Including photovoltaic energy systems)

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Document Number

ASTM-E0971-11R19

Revision Level

2011 R19 EDITION

Status

Current

Modification Type

Reapproval with Ed Change

Publication Date

Oct. 1, 2019

Document Type

Practice

Page Count

5 pages

Committee Number

E44.20