ASTM_E_1164_-_12_2017e1.pdf

Designation:E116412(Reapproved 2017)1Standard Practice forObtaining Spectrometric Data for Object-Color Evaluation1This standard is issued under the fixed designation E1164;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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.1NOTEEditorial corrections were made throughout in May 2017.INTRODUCTIONThe fundamental procedure for evaluating the color of a reflecting or transmitting object is to obtainspectrometric data for specified illuminating and viewing conditions,and from these data to computetristimulus values based on a CIE(International Commission on Illumination)standard observer anda CIE standard illuminant.The considerations involved and the procedures used to obtain precisespectrometric data are contained in this practice.The values and procedures for computing CIEtristimulus values from spectrometric data are contained in Practice E308.Considerations regardingthe selection of appropriate illuminating and viewing geometries are contained in Guide E179.1.Scope1.1 This practice covers the instrumental measurementrequirements,calibration procedures,and material standardsneeded to obtain precise spectral data for computing the colorsof objects.1.2 This practice lists the parameters that must be specifiedwhen spectrometric measurements are required in specificmethods,practices,or specifications.1.3 Mostsectionsofthispracticeapplytobothspectrometers,which can produce spectral data as output,andspectrocolorimeters,which are similar in principle but canproduce only colorimetric data as output.Exceptions to thisapplicability are noted.1.4 This practice is limited in scope to spectrometers andspectrometric colorimeters that employ only a single mono-chromator.This practice is general as to the materials to becharacterized for color.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1003 Test Method for Haze and Luminous Transmittanceof Transparent PlasticsE179 Guide for Selection of Geometric Conditions forMeasurement of Reflection and Transmission Propertiesof MaterialsE259 Practice for Preparation of Pressed Powder WhiteReflectance Factor Transfer Standards for Hemisphericaland Bi-Directional GeometriesE275 Practice for Describing and Measuring Performance ofUltraviolet and Visible SpectrophotometersE284 Terminology 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 FilterMethodE805 Practice for Identification of Instrumental Methods ofColor or Color-Difference Measurement of Materials1This practice is under the jurisdiction of ASTM Committee E12 on Color andAppearance and is the direct responsibility of Subcommittee E12.02 on Spectro-photometry and Colorimetry.Current edition approved May 1,2017.Published May 2017.Originallyapproved in 1987.Last previous edition approved in 2012 as E1164 121.DOI:10.1520/E1164-12R17E01.2For 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 ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 E925 Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidthdoes not Exceed 2 nmE958 Practice for Estimation of the Spectral Bandwidth ofUltraviolet-Visible SpectrophotometersE991 Practice for Color Measurement of Fluorescent Speci-mens Using the One-Monochromator MethodE1767 Practice for Specifying the Geometries of Observa-tion and Measurement to Characterize the Appearance ofMaterialsE2153 Practice for Obtaining Bispectral Photomet