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Fedeial Register / -Vol. 59, No.ry 20 /-Monday, January 31, 1994 / Rules and Regulations 4511
<br /> Diss*w metals are defined as those cistdueitts which wilt pass through a 0.45 micron membrane filter. Following filtration of the sample.
<br /> the referenced prooediue for total metals must be followed.Sample digestion of the filtrate for dissolved metals(origestion of tris m
<br /> original sa -
<br /> pie solution for total metals)mayy be-omitted for AA(direct aspiration or graphite furnace) and ICP analyses, provided Me sample solution to be
<br /> analyzed meets the aiteria: _
<br /> -a.Has&low COD{Q0,-
<br /> b.Is transparent with aatturrbidity measurement of 1 NTU or less,
<br /> d.Is Is�s with wand lme ofparticulate� or suspended matter following acidification.
<br /> &The 1ext ��200,7,"{n�vCoupled Plasma Atomic Emisslort Spectrometric Method for Trace Element Analysis of Water and
<br /> Wastes,"is riven at Appendix C of this Part 136.
<br /> e Marxist lotion i�ss not required it comparability data on representative effluent samples are on company file to show that this preliminary
<br /> distilllation step Is not necessary.however,manual distthation will be required to resolve any controversies. -
<br /> 7AMmonkktLed
<br /> Automated Electrode Method, Industrial Method Number 379-75 WE,dated February 19. 1976, Bran A Luebbe (Technicon) Auto
<br /> Analyze &Lt►ebbe Analyzing Technologies,Fric.,Elmsford.N.Y. 10523. "
<br /> 6 of Inorganic Substances in Water and Fluvial Sediments . USGS TWRI,
<br /> 5.Ameots,Apr.2,1975.Available from ANSI, 1430 Broadway.NewYork,NY 1001$.
<br /> Methods Approved and Cited t7y this United States Environmental Protection Agency",Supplement to the Fifteenth Edion SMwater(1981).11f norase sensitivity and resolution is acceptable.
<br /> 12biocheriiical oxygen demand(CBODs)[rxl5t r10#be contused with the traditional BOOS test which measures"total BOD".The
<br /> addition of the nitrification inhibitor is not a procedural option, tart must be included to report the CBODs parameter. A discharger whose-permit
<br /> requires reporting the traditional BOD$ ma not use a nitrification inhibitor in the procedure for reporting the results. Only when a discharger's
<br /> pertrrit specifically states CBOD,is re fired can the permittee report data using the nitrification inhibitor.
<br /> 1301C Chemical Oxygen Demand Method,Oceanography International Corporation,1978,512 West Loop,P.O. Box.2980,College Station,TX
<br /> 77840:
<br /> 14 Chemical Oxygen Demand,Method 8000,Hach Handbook of Water Analysis, 1979,Hach Chemical Company, P.O.Box 389,Loveland.C
<br /> 80537.
<br /> 15 The back titration method will be used to resolve 00MOVel-Sy.
<br /> 160rion Research Instruction Manual, Residual Chlorine Electrode Model 97-70, 1977, Orion Research Incorporated, 840 Memorial Drive.
<br /> Cambridge, MA 02138.The calibration graph for the Orion residual Chlorine method must be derived using a reagent blank and three standard
<br /> solutions,containing 0.2.1.0,and 5.0 mi 0.00281 N potassium kjdate/100 ml solution.respectively.
<br /> IT The approved method is that cited in Standard Methods for the Examination of Water and Wastewater, 14th Edition, 1976.
<br /> Is National Council of the Paper Industry for Air and Stream Improvement.(Inc.)Technical Bulletin 253,December 1971.
<br /> 19Copper.Siocinchoinate Method,Method 8506,Hach Handbook of Water Analysis. 1979,Hach Chemical Company. P.O.Box 389.Loveland,
<br /> CO 80537.
<br /> .20gftef the manual distillation is completed,the autoanalyzer manifolds in EPA Methods 335.3 (cyanide) or 4202 (phenols) are simplified by
<br /> connecting the re-sample One directly to the sampler.When using the manifold setup shown in Method 335.3,the buffer 62 should be replaced
<br /> with the buffer 7.6 found in Method 335.2.
<br /> 21 Hydrogen Ion (pH) Automated Electrode Method, Industrial Method-Number 378-75WA, October 1976, Bran & Luebbe (Technicon)
<br /> Autoanalyzer II. Bran&Luebbe Analyzing Technologies,Inc.,Elmsford,N.Y. 10523.
<br /> =Iron, 1,10-Phenanthroline Method,Method 8008. 1980,Hach Chemical Company,P.O.Box 389.Loveland,CO 80537.
<br /> 23 Manganese, periodate Oxidation Method, Method 8034. Hach Handbook of Wastewater Analysis, 1979, pages 2-113 and 2-117, Hach
<br /> Chemical Company,Loveland,CO 80537.
<br /> 24 Wershaw, R.L.et at,"Methods for Ark*scs of Organic Substances in Water,"Techniques of Water-Resources Investigation of the U.S. Ge-
<br /> ological Survey, Book 5,Chapter A3, (1972 Revised 1987)p. 14. '
<br /> 25 Nitrogen.Nitrite,Method 8507,Bach Chemical Comparry.P.O.Box 389,Loveland,CO 80537.
<br /> 2a Just prior to distillations,adjust the suffuric-acid-preserved sample to pH 4 with 1+9 NaOH.
<br /> 27The approved mettod is cited In Standard Methods for the Examination of Water and Wastewater, 14th Edition.The colorimetric reaction is
<br /> conducted at a pH of 10.0±02.The approved methods are given on pp. 576-81 of the 14th Edition: Method 510A for distillation, Method 5106
<br /> for the manual Colorimetric procedure,or Method 510C for the manual spectrophotometric procedure.
<br /> 20R. F. Addison and R. G. Ackman. "Direct Determination of Elemental Phosphorus by Gas-Liquid Chromatography," Journal of Chroma-
<br /> tography,vol.47,No.3,pp.421-426.1970.
<br /> 9 Approved methods for the analysis of silver in industrial wastewaters at concentrations of 1 mg/L and above are inadequate where silver ex-
<br /> ists as an inorganic betide.Silver halides such as the bromide and chloride are relatively Insoluble in reagents such as nitric acid but are read'ty
<br /> soluble in an aqueous butter of sodium thlosuifate and sodiumxide to of 12.Therefore,for levels of silver above 1 man-20 mL of sam-
<br /> ple should be diluted to 100 mL by adding 40 mL each of 2 M a2 5203 and NaOH.Standards should be prepared in the same mariner. For lev-
<br /> els
<br /> eoels of silver below 1 mg1L the approved method is satisfactory.
<br /> -w The approved method is that cited in Standard Methods for the Examination of Water and Wastewater,-15th Edition
<br /> 01 EPA Methods 3352 and 335.3 require the NaOH absorber solution final concentration to be adjusted to 0.25 N before colorimetric deter-
<br /> mination of total cyanide.
<br /> 32 Stevens, H. H., Me.J.F.,and Smoot, G. F.,"Water Temperature—Influentlal Factors, Field Measurement and Data Presentation",Tech-
<br /> niques of Water-Resources Investigations of the U.S.Geological Survey.Book 1.Chapter D1, 1976. 2-333,Hach Chemical Company.Loveland,
<br /> 33 Zinc,Zincon Method,Method 8009,Hach Handbook of Water Analysis, 1979,pages
<br /> 2-231 andCO 60537.
<br /> 34"Direct Current Plasma (DCP) Optical Emission Spectrometric Method for Trade Elemental An
<br /> of Water and Wastes, Method
<br /> AES0029: 1986—Revised 1991,Applied Research Laboratories,Inc.,24911 Avenue Stanford,Valencia,CA 91355.
<br /> 36 Precision and recovery statements for the atomic absorption direct aspiration and graphite furnace methods. and for the spectrophotometric
<br /> SDDC method for arsenic are provided in Appendix D of this part titled."Precision and Recovery Statements for Methods for Measuring Metals".
<br /> se"Closed Vessel Microwave Digestion of Wastewater Samples for Determination of Metals", CEM Corporation. P.O. Box 200, Matthews, NC
<br /> 28106-0200,April 16. 1992.Available from the CEM Corporation.
<br /> 37 When determining boron and silica, only plastic, PTFE, or quartz sampling and laboratory ware must be used from time of collection until
<br /> completion of analysis.
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