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ASTM E1651-94(1999)
Standard Test Method for Total Luminous Reflectance Factor by Use of 30/t Integrating-Sphere Geometry
STANDARD published on 10.11.1999
The information about the standard:
Designation standards: ASTM E1651-94(1999)
Note: WITHDRAWN
Publication date standards: 10.11.1999
SKU: NS-42519
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM E1651-94(1999) :
Keywords:
Geometric analysis, Integrating-sphere reflectometer, Opaque nonfluorescent specimens, Reflectance and reflectivity-paints/related coatings/materials, Reflectometer, Total luminous reflectance, total luminous reflectance factor, by use of 30/T integrating-sphere, geometry, test, ICS Number Code 87.040 (Paints and varnishes)
Additional information
| 1. Scope |
|
1.1 This test method covers measurement of total luminous reflectance factor of opaque, nonfluorescent specimens by use of an integrating-sphere reflectometer with illumination at an angle of 30° from the surface normal and diffuse viewing with specular component included. 1.2 This test method is intended to be used for evaluation of total luminous reflectance factor of reflector lighting sheet material. It may be used for evaluation of other material when its specific geometry has been found to be applicable. 1.3 This standard does not purport to address all of the safety concerns, 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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