ASTM E1791

ASTM E1791

$28.00

Standard Practice for Transfer Standards for Reflectance Factor for Near-Infrared Instruments Using Hemispherical Geometry

Published by Publication Date Number of Pages
ASTM 09/01/2021 4
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ASTM E1791 – Standard Practice for Transfer Standards for Reflectance Factor for Near-Infrared Instruments Using Hemispherical Geometry

1.1”This practice covers procedures for the preparation and use of acceptable transfer standards for NIR spectrophotometers. Procedures for calibrating the reflectance factor of materials on an absolute basis are contained in CIE Publication No. 44 (9). Both the pressed powder samples and the sintered PTFE materials are used as transfer standards for such calibrations because they have very stable reflectance factors that are nearly constant with wavelength and because the distribution of flux resembles closely that from the perfect reflecting diffuser.

Product Details

Published:
09/01/2021
Number of Pages:
4
File Size:
1 file , 79 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus

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