1、Designation:D808316Standard Test Method forTotal Nitrogen,and Total Kjeldahl Nitrogen(TKN)byCalculation,in Water by High Temperature CatalyticCombustion and Chemiluminescence Detection1This standard is issued under the fixed designation D8083;the number immediately following the designation indicate
2、s 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.1.Scope1.1 This test method covers the determination of totalnit
3、rogen(TN)and total dissolved nitrogen(TDN)in surfacewater,seawater,groundwater,wastewater,and wastewatereffluents in the range from 0.210 mg/L N.Concentrationsfrom 10500 mg/L are possible when used in conjunction withmanual or automatic dilution,or automatic injection of lesssample volume.The EPA 40
4、 CFR Part 136 Appendix BMethod Detection Limit(MDL)is 0.05 mg/L N.Higherconcentrations may be determined by sample dilution.Lowerconcentrations may be possible by injecting larger samplevolumes.Follow the manufacturers instructions.1.2 The sample is injected onto a platinum catalyst heated at720C.Th
5、e sample converts into a gaseous phase and isforced through a layer of catalyst ensuring conversion of allnitrogen containing compounds to nitrogen oxide(NO).Reac-tion with ozone converts the NO to an exited NO2.As theexcited NO2returns to the ground state,it emits radiation thatis measured photo-el
6、ectrically.1.3 Total and dissolved organic carbon analysis by TestMethod D7573 can be analyzed at the same time on the samesample simultaneously using a properly equipped analyzer.(See Appendix X1 for an example of simultaneous TOC data.)1.4 This test method quantitatively recovers nitrogen from ala
7、rge range of organic and inorganic nitrogen compounds(seeTable 1 and Table 2).The test method does not measurenitrogen gas(N2).It is the users responsibility to ensure thevalidity of this test method for waters of untested matrices.1.5 This test method is applicable only to nitrogenousmatter in the
8、sample that can be introduced into the reactionzone.The syringe needle or injector opening size generallylimits the maximum size of particles that can be so introduced.Optional automatic sample homogenization may be used.1.6 This test method is performance based.You may makemodifications that improv
9、e the test methods performance butdo not change the oxidation or detection technique.1.7 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated wi
10、th its use.It is theresponsibility of the 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:2D1129 Terminology Relating to WaterD1193 Specification for Reagent W
11、aterD1426 Test Methods for Ammonia Nitrogen In WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD3590 Test Methods for Total Kjeldahl Nitrogen in WaterD3867 Test Methods for Nitrite-N
12、itrate in WaterD4327 Test Method for Anions in Water by Suppressed IonChromatographyD4448 Guide for Sampling Ground-Water Monitoring WellsD5847 Practice for Writing Quality Control Specificationsfor Standard Test Methods for Water AnalysisD6089 Guide for Documenting a Groundwater SamplingEventD6538
13、Guide for Sampling Wastewater With AutomaticSamplersD6759 Practice for Sampling Liquids Using Grab and Dis-crete Depth SamplersD6919 Test Method for Determination of Dissolved Alkaliand Alkaline Earth Cations and Ammonium in Water andWastewater by Ion Chromatography1This test method is under the jur
14、isdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.06 on Methods forAnalysis forOrganic Substances in Water.Current edition approved Dec.1,2016.Published February 2017.DOI:10.1520/D8083-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,or
15、contact 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
16、 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 D7573 Test Method for Total Carbon and Organic Carbon inWater by High Temperature Catalytic Combustion andInfrared DetectionD7781 Test Method for Nitrite-Nitrate in Water by NitrateReductase3.Terminology3.1 Defi
