ASTM E424-71(2015)
Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- Standard No.
- ASTM E424-71(2015)
- Release Date
- 2015
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM E424-71(2023)
- Latest
- ASTM E424-71(2023)
- Scope
- 1.1 These test methods cover the measurement of solar energy transmittance and reflectance (terrestrial) of materials in sheet form. Method A, using a spectrophotometer, is applicable for both transmittance and reflectance and is the referee method. Method B is applicable only for measurement of transmittance using a pyranometer in an enclosure and the sun as the energy source. Specimens for Method A are limited in size by the geometry of the spectrophotometer while Method B requires a specimen 0.61 m2 (2 ft2 ). For the materials studied by the drafting task group, both test methods give essentially equivalent results. 1.2 This standard does not purport to address all of the safety problems, 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.
ASTM E424-71(2015) Referenced Document
- ASTM E259 Standard Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical and Bi-Directional Geometries
- ASTM E275 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
- ASTM E308 Standard Practice for Computing the Colors of Objects by Using the CIE System
ASTM E424-71(2015) history
- 2023 ASTM E424-71(2023) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 2015 ASTM E424-71(2015) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 2007 ASTM E424-71(2007) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 1971 ASTM E424-71(2001) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 1993 ASTM E424-71(1993)e1 Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 1971 ASTM E424-71(1993) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
- 1971 ASTM E424-71 Standard Methods of Test for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
