ASTM E1477-98a Standard test method for luminous reflectance factor of acoustical materials by use of integrating-sphere reflectometers
Publication Year
1998
Document Status
Current
Abstract
Test method for measuring the luminous reflectance factor of acoustical materials for use in predicting the levels of room illumination.
Document History
Reapproved 2022.
Publisher Information
American Society for Testing and Materials
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