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ASTM E805-12
Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials
STANDARD published on 1.2.2012
The information about the standard:
Designation standards: ASTM E805-12
Note: WITHDRAWN
Publication date standards: 1.2.2012
SKU: NS-48067
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM E805-12 :
Keywords:
color, color difference, colorimetry, data format, documentation, instrumental measurement&mdash,color/light, metadata, reflectance and reflectivity, spectrophotometry, transmittance and reflectance, Color difference measurements, Colorimetric analysis, Instrumental measurement--color/light, Color, Light transmission and reflection, Reflectance and reflectivity--paints/related coatings/materials, Spectrophotometry, Transmittance and reflectance
Additional information
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The options available in methods for the measurement of color or color-difference are many. These involve choices in: (1) specimens, (2) geometric and spectral properties of instruments, (3) calibration bases for standards used, (4) procedure for sample handling including conditioning, (5) procedure for taking data, and (6) equations for converting instrumental data to final results. Once the measurements have been made, it is essential to document what has been done for the purpose of interlaboratory comparisons, or for future use. A sample form is provided in Fig. 1 to record identifying information applicable to any instrumental method of color or color-difference measurement. Refer to Guide E179, Practices E991, E1164, E1345, E1708, E1767, E2152, and E2194 and Test Methods D5386, D6166, E1247, E1331, E1347, E1348, and E1349, for specific details of measurements. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1 This practice covers the documentation of instrumental measurement of color or color difference for current communication or for future reference. The practice is applicable to instrumental measurements of materials where color is seen by reflected, transmitted or emitted light and any combinations of one or more of these processes. The practice is recommended for documentation of methodology in interlaboratory color-measurement programs. 1.2 An adequate identification of an instrumental measure of color or color-difference consists of five parts: 1.2.1 Nature and source of available samples and the form of specimens actually measured, 1.2.2 Instrumental conditions of measurement, including instrument geometrical and spectral conditions of measurement, 1.2.3 Standards used, 1.2.4 Data acquisition procedure, and 1.2.5 Color scales employed. 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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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