Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation

SIGNIFICANCE AND USE
The most general and reliable methods for obtaining CIE tristimulus values or, through transformation of them, other coordinates for describing the colors of objects are by the use of spectrometric data. Colorimetric data are obtained by combining object spectral data with data representing a CIE standard observer and a CIE standard illuminant, as described in Practice E 308.
This practice provides procedures for selecting the operating parameters of spectrometers used for providing data of the desired precision. It also provides for instrument calibration by means of material standards, and for selection of suitable specimens for obtaining precision in the measurements.
SCOPE
1.1 This practice covers the instrumental measurement requirements, calibration procedures, and material standards needed to obtain precise spectral data for computing the colors of objects.
1.2 This practice lists the parameters that must be specified when spectrometric measurements are required in specific methods, practices, or specifications.
1.3 Most sections of this practice apply to both spectrometers, which can produce spectral data as output, and spectrocolorimeters, which are similar in principle but can produce only colorimetric data as output. Exceptions to this applicability are noted.
1.4 This practice is limited in scope to spectrometers and spectrometric colorimeters that employ only a single monochromator. This practice is general as to the materials to be characterized for color.
This standard does not purport to address 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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Publication Date
14-Jul-2007
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 1164 – 07
Standard Practice for
1
Obtaining Spectrometric Data for Object-Color Evaluation
This standard is issued under the fixed designation E 1164; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Thefundamentalprocedureforevaluatingthecolorofareflectingortransmittingobjectistoobtain
spectrometric data for specified illuminating and viewing conditions, and from these data to compute
tristimulus values based on a CIE (International Commission on Illumination) standard observer and
a CIE standard illuminant. The considerations involved and the procedures used to obtain precise
spectrometric data are contained in this practice. The values and procedures for computing CIE
tristimulus values from spectrometric data are contained in Practice E 308. Considerations regarding
the selection of appropriate illuminating and viewing geometries are contained in Guide E 179.
1. Scope D 1003 Test Method for Haze and Luminous Transmittance
of Transparent Plastics
1.1 This practice covers the instrumental measurement re-
E 179 Guide for Selection of Geometric Conditions for
quirements, calibration procedures, and material standards
Measurement of Reflection andTransmission Properties of
needed to obtain precise spectral data for computing the colors
Materials
of objects.
E 259 Practice for Preparation of Pressed Powder White
1.2 This practice lists the parameters that must be specified
Reflectance Factor Transfer Standards for Hemispherical
when spectrometric measurements are required in specific
and Bi-Directional Geometries
methods, practices, or specifications.
E 275 Practice for Describing and Measuring Performance
1.3 Most sections of this practice apply to both spectrom-
of Ultraviolet and Visible Spectrophotometers
eters, which can produce spectral data as output, and spectro-
E 284 Terminology of Appearance
colorimeters, which are similar in principle but can produce
E 308 Practice for Computing the Colors of Objects by
only colorimetric data as output. Exceptions to this applicabil-
Using the CIE System
ity are noted.
E 387 Test Method for Estimating Stray Radiant Power
1.4 This practice is limited in scope to spectrometers and
Ratio of Dispersive Spectrophotometers by the Opaque
spectrometric colorimeters that employ only a single mono-
Filter Method
chromator. This practice is general as to the materials to be
E 805 PracticeforIdentificationofInstrumentalMethodsof
characterized for color.
Color or Color-Difference Measurement of Materials
1.5 This standard does not purport to address the safety
E 925 Practice for Monitoring the Calibration of
concerns, if any, associated with its use. It is the responsibility
Ultraviolet-Visible Spectrophotometers whose Spectral
of the user of this standard to establish appropriate safety and
Slit Width does not Exceed 2 nm
health practices and determine the applicability of regulatory
E 958 Practice for Measuring Practical Spectral Bandwidth
limitations prior to use.
of Ultraviolet-Visible Spectrophotometers
2. Referenced Documents
E 991 Practice for Color Measurement of Fluorescent
2
Specimens Using the One-Monochromator Method
2.1 ASTM Standards:
E 1767 Practice for Specifying the Geometries of Observa-
tion and Measurement to Characterize the Appearance of
1
This practice is under the jurisdiction of ASTM Committee E12 on Color and
Materials
Appearance and is the direct responsibility of Subcommittee E12.02 on Spectro-
E 2153 Practice for Obtaining Bispectral Photometric Data
photometry and Colorimetry.
for Evaluation of Fluorescent Color
Current edition approved July 15, 2007. Published July 2007. Originally
approved in 1987. Last previous edition approved in 2002 as E 1164 – 02.
E 2194 Practice for Multiangle Color Measurement of
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Metal Flake Pigmented Materials
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2.2 NIST Publications:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1164–07
LC-1017 Standards for Checking the Calibration of Spec- the calibration of such instruments, and the material standards
3
trophotometers requiredforthesesteps,aredescribed.Guidelinesaregivenfor
TN-594-12 Optical Radiation Measurements: The Translu- the selection of specimens to minimize the specimen’s contri-
cent Blurring Effect—Method of E
...

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