1、Designation:D621612Standard 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.Scope*1.1 This practice covers the procedure for certifying con-tinuous opacity monitors.In the main part of thi
3、s 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 opacitymonit
4、oring 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 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 specifi
6、cally 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 been adop
7、ted 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 with all of
8、 the appli-cable design and performance requirements of 40 CFR 60,Appendix B,Performance Specification 1 except those forwhich tests are required after installation.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheres2.2 U.S.Environmental Protec
9、tion Agency Document:340 CFR 60 Appendix B,Performance Specification 12.3 Other Documents:ISO/DIS 9004 Quality Management and Quality SystemElements-Guidelines4ANSI/NCSL Z 540-1-1994 Calibration Laboratories andMeasuring Equipment-General Requirements4NIST 260-116-Filter calibration procedures53.Ter
10、minology3.1 For terminology relevant to this practice,see Terminol-ogy D1356.3.2 Definitions of Terms Specific to This Standard:Analyzer Equipment3.2.1 opacity,nmeasurement of the degree to whichparticulate emissions reduce(due to absorption,reflection,andscattering)the intensity of transmitted phot
11、opic light andobscure the view of an object through ambient air,an effluentgas stream,or an optical medium,of a given pathlength.3.2.1.1 DiscussionOpacity(Op),expressed as a percent,isrelated to transmitted light,(T)through the equation:Op51 2 T!100!.(1)3.2.2 opacity monitor,nan instrument that cont
12、inuouslydetermines the opacity of emissions released to the atmo-sphere.1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.03 on Ambient Atmospheresand Source Emissions.Current edition approved Oct.1,2012.Published Novembe
13、r 2012.Originallyapproved in 1998.Last previous edition approved in 2007 as D6216 07.DOI:10.1520/D6216-12.2For 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 D
14、ocument Summary page onthe ASTM website.3Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,htt
15、p:/www.ansi.org.5Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken
16、,PA 19428-2959.United States1 3.2.2.1 DiscussionAn opacity monitor includes a trans-missometer that determines the in-situ opacity,a means tocorrect opacity measurements to equivalent single-pass opacityvalues that would be observed at the pathlength of the emissionoutlet,and all other interface and peripheral equipment neces-sary for continuous operation.3.2.2.2 DiscussionAn opacity monitor may include thefollowing:(1)sample interface equipment such as filters andpurge air blowers to protect th