1、Designation:D621620Standard Practice forOpacity Monitor Manufacturers to Certify Conformance withDesign and Performance Specifications1This standard is issued under the fixed designation D6216;the number immediately following the designation indicates the year oforiginal adoption or,in the case of r
2、evision,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.1.Scope1.1 This practice covers the procedure for certifying con-tinuous opacity monitors.In the main part of this
3、 practice,itincludesdesignandperformancespecifications,testprocedures,and quality assurance requirements to ensure thatcontinuous opacity monitors meet minimum design and cali-bration requirements,necessary in part,for accurate opacitymonitoring measurements in regulatory environmental opacitymonito
4、ring applications subject to 10%or higher opacitystandards.In AnnexA1,additional or alternative specificationsare provided for certifying opacity monitors intended for use inapplications where the opacity standard is less than 10%,orwhere the user expects the opacity to be less than 10%andelects to
5、use the more restrictive criteria in Annex A1.In bothcases,the error budgets for the opacity measurements are givenin Appendix X1.1.2 This practice applies specifically to the originalmanufacturer,or to those involved in the repair,remanufacture,or resale of opacity monitors.1.3 Test procedures that
6、 specifically apply to the variousequipment configurations of component equipment that com-prise either a transmissometer,an opacity monitor,or completeopacity monitoring system are detailed in this practice.1.4 The specifications and test procedures contained in themain part of this practice have b
7、een adopted by reference bythe United States Environmental Protection Agency(U.S.EPA).For each opacity monitor or monitoring system that themanufacturer demonstrates conformance to this practice,themanufacturer may issue a certificate that states that opacitymonitor or monitoring system conforms wit
8、h all of the appli-cable design and performance requirements of 40 CFR 60,Appendix B,Performance Specification 1 except those forwhich tests are required after installation.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization est
9、ablished 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:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheres
10、2.2 U.S.Environmental Protection Agency Documents:340 CFR 60 Appendix B,Performance Specification 140 CFR 60 Appendix F,Procedure 32.3 Other Documents:ANSI/NCSL Z 540-1-1994 Calibration Laboratories andMeasuring Equipment General Requirements4ISO 842 Quality Vocabulary4ISO/DIS 9004 Quality Managemen
11、t and Quality SystemElements Guidelines4NIST 260-116 Filter Calibration Procedures53.Terminology3.1 DefinitionsFor terminology relevant to this practice,see Terminology D1356.3.2 Definitions of Terms Specific to This Standard:Analyzer Equipment3.2.1 opacity,na measure of the degree to which theinten
12、sity of light is reduced as it passes through a gas,due toabsorption and scattering.3.2.1.1 DiscussionThe degree to which the view of anobject against the background is obscured increases withincreasing opacity.Opacity(Op)is related to transmittance(T)through the equation:1This practice is under the
13、 jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.03 on Ambient Atmospheresand Source Emissions.Current edition approved Sept.1,2020.Published September 2020.Originallyapproved in 1998.Last previous edition approved in 2012 as D6216 12.DOI:10.1520/
14、D6216-20.2For 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.3Available from U.S.Government Printing Office,Superinten
15、dent ofDocuments,732 N.Capitol St.,NW,Washington,DC 20401-0001,http:/www.access.gpo.gov.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 107
16、0,Gaithersburg,MD 20899-1070,http:/www.nist.gov.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.Op5 1 2 T(1)3.2.2 opacity moni
