ASTM E 1791 : 1996 : R2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Practice for Transfer Standards for Reflectance Factor for Near-Infrared Instruments Using Hemispherical Geometry
Hardcopy , PDF
22-09-2021
English
24-06-2014
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 03.06, 2014 Defines procedures for the preparation and use of acceptable transfer standards for NIR spectrophotometers.
| Committee |
E 13
|
| DocumentType |
Standard Practice
|
| Pages |
4
|
| ProductNote |
Reconfirmed 2014
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This 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.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3This 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.
| ASTM E 259 : 1998 | Standard Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical Geometry and Bi-Directional Geometries |
| ASTM E 284 : 2017 : REDLINE | Standard Terminology of Appearance |
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