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ASTM G177 PDF
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Standard Tables for Reference Solar Ultraviolet Spectral Distributions: Hemispherical on 37 degree Tilted Surface
| Published by | Publication Date | Number of Pages |
| ASTM | 06/01/2020 | 10 |
ASTM G177 – Standard Tables forReference Solar Ultraviolet Spectral Distributions: Hemispherical on 37 degree Tilted Surface
1.1 The table provides a standard ultraviolet spectral irradiance distribution that maybe employed as a guide against which manufactured ultraviolet light sources may be judged when applied to indoor exposure testing. The table provides a reference for comparison with natural sunlight ultraviolet spectral data. The ultraviolet reference spectral irradiance is provided for the wavelength range from 280 to 400 nm. The wavelength region selected is comprised of the UV-A spectral region from 320 to 400 nm and the UV-B region from 280 to 320 nm.
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