ASTM E424-1971(1993)
簿板材料的太阳能传播和反射的试验方法

Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials

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标准号

ASTM E424-1971(1993)

发布日期

1971年

实施日期

废止日期

无

中国标准分类号

G30

发布单位

US-ASTM

适用范围

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 m (2 ft). 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.