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About This Item
Full Description
1.1 This test method covers the measurement of solar reflectance of various horizontal and low-sloped surfaces and materials in the field, using a pyranometer. The test method is intended for use when the sun angle to the normal from a surface is less than 45°.
Document History
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ASTM E1918-21
Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field- Most Recent
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ASTM E1918-16
Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field- Historical Version
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ASTM E1918-06(2015)
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Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field- Historical Version
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ASTM E1918-06
Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field- Historical Version
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ASTM E1918-97
Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field (Withdrawn 2006)- Historical Version