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ASTM_E_1341_-_06_2011e1.pdf

1、Designation:E134106(Reapproved 2011)1Standard Practice forObtaining Spectroradiometric Data from Radiant Sourcesfor Colorimetry1This standard is issued under the fixed designation E1341;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision

2、,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEReference to CIE Publication 015:2004 was corrected editorially throughout in November 2011.INTRODUCTIONThe fundamen

3、tal procedure for characterizing the color and absolute luminance of radiant sourcesis to obtain the spectroradiometric data under specified measurement conditions,and from these datato compute CIE chromaticity coordinates and luminance values based on the CIE 1931 StandardObserver.The consideration

4、s involved and the procedures to be used to obtain precision spectrora-diometric data for this purpose are contained in this practice.The values and procedures for computingCIE chromaticity coordinates are contained in Practice E308.This practice includes minor modifi-cations to the procedures given

5、 in Practice E308 that are necessary for computing the absoluteluminance of radiant sources.1.Scope1.1 This practice prescribes the instrumental measurementrequirements,calibration procedures,and physical standardsneeded for precise spectroradiometric data for characterizingthe color and luminance o

6、f radiant sources.1.2 This practice lists the parameters that must be specifiedwhen spectroradiometric measurements are required in specificmethods,practices,or specifications.1.3 This practice describes the unique calculation proce-dures required to determine basic colorimetric data of luminoussour

7、ces.1.4 This practice is general in scope rather than specific asto instrument,object,or material.1.5 The values stated in SI units are to be regarded as thestandard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the

8、user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E275 Practice for Describing and Measuring Performance ofUltraviolet and Visible SpectrophotometersE284 Termin

9、ology of AppearanceE308 Practice for Computing the Colors of Objects by Usingthe CIE SystemE387 Test Method for Estimating Stray Radiant Power Ratioof Dispersive Spectrophotometers by the Opaque FilterMethodE925 Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose

10、Spectral Bandwidthdoes not Exceed 2 nmE958 Practice for Measuring Practical Spectral Bandwidthof Ultraviolet-Visible Spectrophotometers2.2 NIST Publications:NIST Technical Note 594-1 Fundamental Principles of Ab-solute Radiometry and the Philosophy of the NBS Pro-gram(19681971)3NIST Technical Note 5

11、94-3 Photometric Calibration Proce-dures31This practice is under the jurisdiction of ASTM Committee E12 on Color andAppearance and is the direct responsibility of Subcommittee E12.06 on ImageBased Color Measurement.Current edition approved Nov.1,2011.Published November 2011.Originallyapproved in 199

12、1.Last previous edition approved in 2006 as E1341 06.DOI:10.1520/E1341-06R11E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe

13、 ASTM website.3Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.3 CIE Publications:CIE Publication

14、015:2004 Colorimetry,3rd ed.4CIE Publication No.38 Radiometric and Photometric Char-acteristics of Materials and their Measurement,19774CIE Publication No.63 Spectroradiometric Measurement ofLight Sources,198442.4 IES Standard:IES Guide to Spectroradiometric Measurements,198352.5 ANSI Standard:ANSI/

15、IES RP-16-1980 Nomenclature and Definitions forIlluminating Engineering53.Terminology3.1 Definitions:3.1.1 The definitions of appearance terms in TerminologyE284 are applicable to this practice.4.Summary of Practice4.1 Procedures are given for selecting the types and oper-ating parameters of spectro

16、radiometers used to produce datafor the calculation of CIE tristimulus values and other colorcoordinates to describe the colors of radiant sources.Theimportant steps of the calibration of such instruments,and thestandards required for these steps,are described.Parametersare identified that must be specified when spectroradiometricmeasurements are required in specific methods or other docu-ments.Modifications to Practice E308 are described in order toaccount for the differences between objects an

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