ASTM-E424 2001

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E424-71(2001) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials

Published By	Publication Date	Number of Pages
ASTM	2001	5

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Categories: 83.140.10 - Films and sheets, ASTM

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Description

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.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Methods Significance and Use
2	Method A—Spectrophotometric Method
3	Method B—Pyranometer Method Keywords FIG. 1
4	X1. SOLAR ENERGY TRANSMITTANCE OR REFLECTANCE USING WEIGHTED ORDINATES (NORMALIZED TO = 100.00) X2. TWENTY SELECTED ORDINATES FOR EVALUATION OF SOLAR TRANSMITTANCE OR REFLECTANCE AT SEA LEVEL X3. SOLAR ADMITTANCE PARAMETERS X3.1 X3.2 X3.3 X3.4
5	X3.5 X3.6 X3.7 X3.8

Additional information

Standard Title	E424-71(2001) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials
Published Code	ASTM
Publication Date	2001
Pages Count	5
ICS Codes	83.140.10 - Films and sheets

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ASTM-E424 2001

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