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ASTM E1918-21
Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field
Translate name
STANDARD published on 1.10.2021
The information about the standard:
Designation standards: ASTM E1918-21
Publication date standards: 1.10.2021
SKU: NS-1038063
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM E1918-21 :
Keywords:
pyranometer, solar energy, solar reflectance,, ICS Number Code 17.180.20 (Colours and measurement of light)
Additional information
| Significance and Use | ||||
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5.1?Solar reflectance is an important factor affecting the temperature of a sunlit surface and that of the near-surface ambient air temperature. The test method described herein measures the solar reflectance of surfaces in natural sunlight. |
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| 1. Scope | ||||
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1.1?This test method covers the measurement of solar reflectance of various horizontal and low-sloped surfaces and materials in the field, using an albedometer or pyranometer. The test method is intended for use when the sun angle to the normal from a surface is less than 45?. 1.2?This 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. |
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| 2. Referenced Documents | ||||
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