ASTM E 971 : 2011(R2019)
Current
The latest, up-to-date edition.
Standard Practice for Calculation of Photometric Transmittance and Reflectance of Materials to Solar Radiation
Hardcopy , PDF
English
01-10-2019
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
E 44
|
| DocumentType |
Standard Practice
|
| Pages |
5
|
| ProductNote |
THIS STANDARD ALSO REFERS TO Standard Illuminator D65
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This practice describes the calculation of luminous (photometric) transmittance and reflectance of materials from spectral radiant transmittance and reflectance data obtained from Test Method E903.
1.2Determination 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.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4This 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.
1.5This 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.
| ASTM G 173 : 2003 | Standard Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37° Tilted Surface |
| ASTM G 173 : 2003 : R2020 | Standard Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37° Tilted Surface |
| ASTM E 1175 : 1987 : R1996 | Standard Test Method for Determining Solar or Photopic Reflectance, Transmittance, and Absorptance of Materials Using a Large Diameter Integrating Sphere |
| ASTM E 772 : 2015 : R2021 | Standard Terminology of Solar Energy Conversion |
| ASTM E 772 : 2015 | Standard Terminology of Solar Energy Conversion |
| ASTM E 1175 : 1987 : R2022 | Standard Test Method for Determining Solar or Photopic Reflectance, Transmittance, and Absorptance of Materials Using a Large Diameter Integrating Sphere |
| ASTM G 173 : 2023 | Standard Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37° Tilted Surface |
| ASTM E 1175 : 1987 : R2015 | Standard Test Method for Determining Solar or Photopic Reflectance, Transmittance, and Absorptance of Materials Using a Large Diameter Integrating Sphere |
| ASTM E 972 : 1996 : R2021 | Standard Test Method for Solar Photometric Transmittance of Sheet Materials Using Sunlight |
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