Revision 98A, December 10, 1998
Standard Test Method for Luminous Reflectance Factor of Acoustical Materials by Use of Integrating-Sphere Reflectometers
Includes all amendments and changes through Reapproval Notice , 2013
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Description / Abstract:
This test method covers the measurement of the luminous
reflectance factor of acoustical materials for use in predicting
the levels of room illumination.