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IES LM-81-10
- Photometric Testing of Skylights and Tubular Daylighting Devices Under Hemispherical Sky Conditions
- standard by Illuminating Engineering Society, 08/23/2010
- Publisher: IES
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This guide provides the IES required uniformmethod for determining and reporting the photometriccharacteristics of skylights and tubulardaylighting devices that incorporate a means todiffuse the natural hemispherical daylight as thedaylight passes through the daylighting system.