ASTM WK34846(What is a Work Item? / How to Input to a Work Item)Work Item: ASTM WK34846 - Revision of E971 - 88(2003) Standard Practice for Calculation of Photometric Transmittance and Reflectance of Materials to Solar RadiationActive Standard: E971 - 11 Developed by Subcommittee: E44.05 | Committee E44 Home | Contact Staff Manager
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