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À/]:# /\9# /\?9À# 6\?9À# 6\??9À# 6\?9À#? 9\??9À#? ?A\9À# B\9À# B\9À  B\9ǀ  B\9ǀ  B[9À ? B[9À ? ??B[9À ?? ?B[9À ? B[?9À ? 0[?9À ? 0[?8À ? /[8À ? ?/[?8À ? /[ 8À ? /[ 8À @? /[ 8À  /[ 8À  /[ 8À  ?/[ 8À  ?/[ 8  /[ 8 ǀ /[À ?7 /[ ?7 /[ 7À /[ 7?ÀÀ À/[À À7#?À /[À À7#? /[À À7#? ?D[À ?6?À ?D[À 6? D[À 6? E[À 6? E[À 6? E[À ?5? E[À 5? E[À 5 ? E[ 4 ? E[ !8` ?? E[   ??? ?E[   ` ? ?E[  x@ ? E[   ? /[     ?/[ w ??/[? !&? /[? ?1? /[? 7 /[I /[I ?/[K /\K /\K /\K /\d /\= /\??< /\???<?/\?41?/\?4G\?4?`?G\4?G]4?G]?5H]?5??H] 5H] <H]?8?<H^#H^?(? H^?(? ?H^?(?? ??H_??p( H_"߀ I_"" /" ?/" /@" /" ?/"? ?/?" /?# /??# ?/?#/?#?/?#/?#/?# /< /</;?/;/;/;?J;?L?5??P5P<4Q 4Q ??4Q 04?Q?>"??Q>"?P"???P"?P"P"P" ?/"/8?"?/8?"/x"/ #?/??#?/#?/?#/#/# /?$!.?$(.?C(/ A(/ A(/C(.C(.H(/HXHXCXBX?BX?BYCXIXX?XX(X߀?'Xπ'XÀ((/3((/-(/.'/?*'/*(/*(/?)(/)(/((/((.((.'(.A(.?A(.?A(.??A(.?A(.D(.DXHXHXÀCXCXCXCX)?X ?'X 'Y '?Z ?'pZ ?'[???'+/??'+/??(+/?(x*/?(x+/(x*/(x*/>)x*/)p?*.)p?*.)p*.)p*.?)x*?.Ix*?.Ix*?.I*?.I*?.*?.x*?.x+.8ZZZ?Z?ZZ? Z ZZZZZ*/*/?*/??*/??*.??*.??*?.??*?.?x*?.?F?.F?.?.?...?..*wwE0= ?/9?/1/)c??/ '??/?0?/?5???.9???.J?.E??.=??ǀ79????1?G,?L$TX?`du*À[[[[[[[[[[[[[[[[[[[[[ÀZYYYYY?Y?YYYZZZZZZZZZ?ZZZ[[À[[[*))߀)*`߀Ȁ`Ȁ*#*:TԀ*o󀹀*9Nڀ* 1*6π6À*( s5 #d6X@`7@#963#d6X@`7@#""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""  s5 Prepared by Emission Measurement Branch `x(#? EMTIC TM202 ă Technical Support Division, OAQPS, EPA`(#(#K """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""9(DV#d6X@`7@#  s5 Z  EMISSION MEASUREMENT TECHNICAL INFORMATION CENTER  r5O $ TEST METHOD ă  (X` hp x (#%'0*,.8135@8: purged after the run with nitrogen (N2) to remove dissolved sulfur dioxide (SO2) gases from the impinger contents. The impinger solution is then extracted with  s>u methylene chloride (MeCl2). The organic and aqueous fractions are then taken to dryness and the residues weighed. The total of both fractions represents the 0*"" CPM.  s5N D EMTIC TM202"EMTIC TEST METHOD`l (#DPage   1.2.2 ` ` The potential for low collection efficiency exist at oilfired boilers. To improve the collection efficiency at these type of sources, an additional filter placed between the second and third impinger is recommended.  r5:  2. PRECISION AND INTERFERENCE  s5  2.1 Precision. The precision based on method development tests at an oil-fired boiler and a catalytic cracker were 11.7 and 4.8 percent, respectively.  s5&  2.2 Interference. Ammonia. In sources that use ammonia injection as a control technique for hydrogen chloride (HCl), the ammonia interferes by reacting  s> with HCl in the gas stream to form ammonium chloride (NH4Cl) which would be measured as CPM. The sample may be analyzed for chloride and the equivalent  s>t amount of NH4Cl can be subtracted from the CPM weight. However, if NH4Cl is to be counted as CPM, the inorganic fraction should be taken to near dryness (less than 1 ml liquid) in the oven and then allowed to air dry at ambient temperature  s>r to prevent any NH4Cl from vaporizing.  s5  3. APPARATUS  s5$  3.1 Sampling Train . Same as in Method 17, Section 2.1, with the following  s5t exceptions noted below (see Figure 2021). Note: Mention of trade names or specific products does not constitute endorsement by EPA.  s5  3.1.1 The probe extension shall be glasslined or Teflon.  s5b  3.1.2 Both the first and second impingers shall be of the Greenburg-Smith design with the standard tip.  s5  3.1.3 All sampling train glassware shall be cleaned prior to the test with soap and tap water, water, and rinsed using tap water, water, acetone, and  s> finally, MeCl2. It is important to completely remove all silicone grease from  s>! areas that will be exposed to the MeCl2 during sample recovery.!0*"" y!xs'm!d-dd202-1.TIFx(y$(#(#(#(#!'#$00*s's'mmm'#.!0  s5N  3.2 Sample Recovery. Same as in Method 17, Section 2.2, with the following additions:  s>    3.2.1 N2 Purge Line. Inert tubing and fittings capable of delivering 0 to  s>N 28 liters/min of N2 gas to the impinger train from a standard gas cylinder (see Figure 2022). Standard 0.95cm (3/8-inch) plastic tubing and compression fittings in conjunction with an adjustable pressure regulator and needle valve may be used.  s5  3.2.2 Rotameter. Capable of measuring gas flow at 20liters/min. 0*s's'mm yAxs'm%03dd202-2.TIFx(y$(#(#(#(#A'#$00*s's'mmm'#.A0  s5N  3.3 Analysis . The following equipment is necessary in addition to that listed in Method 17, Section 2.3:  s5  3.3.1 Separatory Funnel. Glass, 1liter.  s5<  3.3.2 Weighing Tins. 350ml.  s5  3.3.3 Drying Equipment. Hot plate and oven with temperature control.  s5  3.3.4 Pipets. 5ml.  s5,  3.3.5 Ion Chromatograph. Same as in Method 5F, Section2.1.6.  s5|  4. REAGENTS Unless otherwise indicated, all reagents must conform to the specifications established by the Committee on Analytical Reagents of the American Chemical Society. Where such specifications are not available, use the best available grade.  s5  4.1 Sampling. Same as in Method 17, Section 3.1, with the addition of deionized distilled water to conform to the American Society for Testing and Materials Specification D 119374, TypeII and the omittance of Section 3.1.4.  s5    4.2 Sample Recovery. Same as in Method 17, Section 3.2, with the following additions:  s>  4.2.1 N2 Gas. Zero grade N2 gas at delivery pressures high enough to provide a flow of 20liters/min for 1 hour through the sampling train.  s5>  H  4.2.2 Methylene Chloride, ACS grade. Blanks shall be run prior to use and only methylene chloride with low blank values (0.001 percent) shall be used.  s5  4.2.3 Water. Same as in Section 4.1.  s5,  4.3 Analysis . Same as in Method 17, Section 3.3, with the following additions:  s5  4.3.1 Methylene Chloride. Same as Section 4.2.2.  s>"  4.3.2 Ammonium Hydroxide. Concentrated (14.8 M) NH4OH.  s5|#  4.3.3 Water. Same as in Section 4.1.  s5$  4.3.4 Phenolphthalein. The pH indicator solution, 0.05percent in 50percent alcohol.&0*s's'mmԌ s5  5. PROCEDURE  s5P  5.1 Sampling. Same as in Method 17, Section 4.1, with the following exceptions:  s5  5.1.1 Place 100 ml of water in the first three impingers.  s5>  5.1.2 The use of silicone grease in train assembly is not recommended  s> because it is very soluble in MeCl2 which may result in sample contamination. Teflon tape or similar means may be used to provide leakfree connections between glassware.  s5  5.2 Sample Recovery. Same as in Method 17, Section 4.2 with the addition  s> of a posttest N2 purge and specific changes in handling of individual samples as described below.  s>  5.2.1 Posttest N2 Purge for Sources Emitting SO2. ( Note: This step is  s> recommended, but is optional. When little or no SO2 is present in the gas stream, i.e.,the pH of the impinger solution is greater than 4.5, purging has  s4 been found to be unnecessary.) As soon as possible after the posttest leak check, detach the probe and filter from the impinger train. Leave the ice in the impinger box to prevent removal of moisture during the purge. If necessary, add more ice during the purge to maintain the gas temperature below 20$C. With no flow of gas through the clean purge line and fittings, attach it to the input of the impinger train (see Figure2022). To avoid over or underpressurizing the  s>r impinger array, slowly commence the N2 gas flow through the line while simultaneously opening the meter box pump valve(s). Adjust the pump bypass and  s>" N2 delivery rates to obtain the following conditions: (1) 20liters/min or H@ and (2) an overflow rate through the rotameter of less than 2liters/min.  s> Condition (2) guarantees that the N2 delivery system is operating at greater than ambient pressure and prevents that possibility of passing ambient air (rather  s>" than N2) through the impingers. Continue the purge under these conditions for 1hour, checking the rotameter and H value(s) periodically. After 1hour, simultaneously turn off the delivery and pumping systems.  r5' 5.2.2 Sample Handling. '+((Ԍ s5  5.2.2.1 Container Nos. 1, 2, and 3. If filter catch is to be determined, as detailed in Method 17, Section 4.2.  s5  HH  5.2.2.2 Container No. 4 (Impinger Contents). Measure the liquid in the first three impingers to within 1 ml using a clean graduated cylinder or by weighing it to within 0.5 g using a balance. Record the volume or weight of liquid present to be used to calculate the moisture content of the effluent gas. Quantitatively transfer this liquid into a clean sample bottle (glass or plastic); rinse each impinger and the connecting glassware, including probe extension, twice with water, recover the rinse water, and add it to the same sample bottle. Mark the liquid level on the bottle.  s>  5.2.2.3 Container No. 5 (MeCl2 Rinse). Follow the water rinses of each impinger and the connecting glassware, including the probe extension with two  s> rinses of MeCl2; save the rinse products in a clean, glass sample jar. Mark the liquid level on the jar.  s5p  5.2.2.4 Container No. 6 (Water Blank). Once during each field test, place 500ml of water in a separate sample container.  s>  5.2.2.5 Container No. 7 (MeCl2 Blank). Once during each field test, place  s>p in a separate glass sample jar a volume of MeCl2 approximately equivalent to the  s> volume used to conduct the MeCl2 rinse of the impingers.  s54  5.3 Analysis . Record the data required on a sheet such as the one shown in Figure 2023. Handle each sample container as follows:  s5    5.3.1 Container Nos. 1, 2, and 3. If filter catch is analyzed, as detailed in Method 17, Section 4.3.  s5p  5.3.2 Container Nos. 4 and 5. Note the level of liquid in the containers and confirm on the analytical data sheet whether leakage occurred during transport. If a noticeable amount of leakage has occurred, either void the sample or use methods, subject to the approval of the Administrator, to correct the final results. Measure the liquid in Container No. 4 either volumetrically to +1 ml or gravimetrically to +0.5 g. Remove a 5ml aliquot and set aside for  s5F& later ion chromatographic (IC) analysis of sulfates. ( Note: Do not use this aliquot to determine chlorides since the HCl will be evaporated during the first'+((  s4 drying step; Section 8.2 details a procedure for this analysis.)   s5N  5.3.2.1 Extraction. Separate the organic fraction of the sample by adding  s> the contents of Container No. 5 (MeCl2) to the contents of ContainerNo.4 in a 1000-ml separatory funnel. After mixing, allow the aqueous and organic phases  s>N to fully separate, and drain off most of the organic/MeCl2 phase. Then add 75ml  s> of MeCl2 to the funnel, mix well, and drain off the lower organic phase. Repeat  s> with another 75 ml of MeCl2. This extraction should yield about 250 ml of  s>t organic extract. Each time, leave a small amount of the organic/MeCl2 phase in the separatory funnel ensuring that no water is collected in the organic phase. Place the organic extract in a tared 350ml weighing tin.  r5r  5.3.2.2 Organic Fraction Weight Determination (Organic Phase from Container  s5 Nos.4 and 5). Evaporate the organic extract at room temperature and pressure in a laboratory hood. Following evaporation,  HH desiccate the organic fraction for 24 hours in a desiccator containing anhydrous calcium sulfate. Weigh to a constant weight and report the results to the nearest 0.1mg.  s5  5.3.2.3 Inorganic Fraction Weight Determination. [ Note :  s>J If NH4Cl is to be counted as CPM, the inorganic fraction should be taken to near dryness (less than 1 ml liquid) in the oven and then allow to air dry at ambient temperature. If multiple acid emissions are suspected, the ammonia titration procedure in Section 8.1 may be perferred.] Using a hot plate, or equivalent, evaporate the aqueous phase to approximately 50 ml; then, evaporate to dryness in a 105$C oven. Redissolve the residue in 100 ml of water. Add five drops of  s>2 phenolphthalein to this solution; then, add concentrated (14.8M)NH4OH until the  s> sample turns pink. Any excess NH40H will be evaporated during the drying step.  s4 Evaporate the sample to dryness in a 105$C oven, desiccate the sample for 24hours, weigh to a constant weight, and record the results to the nearest  s>" 0.1mg. ( Note : The addition of NH4OH is recommended, but is optional when  s># little or no SO2 is present in the gas stream, i.e., when the pH of the impinger  s>V% solution is greater than 4.5, the addition of NH4OH is not necessary.)  r>&  5.3.2.4 Analysis of Sulfate by IC to Determine Ammonium Ion (NH4+) Retained  s>( in the Sample. ( Note : If NH4OH is not added, omit this step.) Determine the( +(( amount of sulfate in the aliquot taken from Container No. 4 earlier as described  s>N in Method 5F (AppendixA, 40 CFR Part 60). Based on the IC SO4é2 analysis of the  s> aliquot, calculate the correction factor to subtract the NH4+ retained in the sample and to add the combined water removed by the acidbase reaction (see Section 7.2).  s>  5.3.3 Analysis of Water and MeCl2 Blanks (ContainerNos.6 and7). Analyze these sample blanks as described above in Sections 5.3.2.3 and5.3.2.2, respectively.  s5  5.3.4 Analysis of Acetone Blank (Container No. 8). Same as in Method17, Section4.3.  s5J  6. CALIBRATION Same as in Method 17, Section 5, except for the following:  s5  6.1 IC Calibration. Same as Method 5F, Section 5.  <  s58  6.2 Audit Procedure. Concurrently, analyze the audit sample and a set of compliance samples in the same manner to evaluate the technique of the analyst and the standards preparation. The same analyst, analytical reagents, and analytical system shall be used both for compliance samples and the EPA audit sample. If this condition is met, auditing of subsequent compliance analyses for the same enforcement agency within 30 days is not required. An audit sample set may not be used to validate different sets of compliance samples under the jurisdiction of different enforcement agencies, unless prior arrangements are made with both enforcement agencies.  s5  6.3 Audit Samples. Audit Sample Availability. Audit samples will be supplied only to enforcement agencies for compliance tests. The availability of audit samples may be obtained by writing:  ` ` Source Test Audit Coordinator (MD77B) ` ` Quality Assurance Division ` ` Atmospheric Research and Exposure Assessment Laboratory ` ` U.S. Environmental Protection Agency ` ` Research Triangle Park, NC 27711 or by calling the Source Test Audit Coordinator (STAC) at (919)5417834. The request for the audit sample must be made at least 30 days prior to the scheduledj' +((  s5 compliance sample analysis. hh# 6.4 Audit Results. Calculate the audit sample concentration according to the calculation procedure described in the audit instructions included with the audit sample. Fill in the audit sample concentration and the analyst's name on the audit response form included with the audit instructions. Send one copy to the EPA Regional Office or the appropriate enforcement agency and a second copy to the STAC. The EPA Regional Office or the appropriate enforcement agency will report the results of the audit to the laboratory being audited. Include this response with the results of the compliance samples in relevant reports to the EPA Regional Office or the appropriate enforcement agency.  s5  7. CALCULATIONS Same as in Method 17, Section 6, with the following additions:  s5  7.1 Nomenclature. Same as in Method 17, Section 6.1 with the following additions. .,=, X` hp x (#%'0*,.8135@8: @` Ccpm =P P Concentration of the CPM in the stack gas, dry basis, corrected to standard conditions, g/dscm (g/dscf).(#P  s> @` CSO4 = Concentration of SO4é2 in the sample, mg/ml.  s> @f` mb =P P Sum of the mass of the water and MeCl2 blanks, mg.(#P  s>E @l` mc =P P Mass of the NH4+ added to sample to form ammonium sulfate, mg.(#P  s> @|` mi = Mass of inorganic CPM matter, mg.  s> @f` mo = Mass of organic CPM, mg.  s>M @s` mr =P P Mass of dried sample from inorganic fraction, mg.(#P  s> @f` Vb =P P Volume of aliquot taken for IC analysis, ml. (#P  s> @P` Vic =P P Volume of impinger contents sample, ml.(#P X` P hp x (#%'0*,.8135@8:  &&7.2 Correction for NH4+ and H2O. Calculate the correction factor to  s>^" subtract the NH4+ retained in the sample based on the IC SO4é2 and if desired, add the combined water removed by the acidbase reaction. !#xa,ddddddd xJ s4 #d6X@`7@#`h Eq. 2021func{m_c~=~K~C_SO_2~V_ic}mUcMKClUSOdd4+2V=Uic߃$(#(#\&(#(#!!'#$0 +((a,'#.! 0ԒWhere:  s>N  K = 0.0208, when correcting for NH4+ and H2O.  s>  = 0.354, when only correcting for NH4+.  r5 && 7.3 Mass of Inorganic CPM.  r5` A#xe ddddd dd xvJ s4 #d6X@`7@#`d Eq. 2022<.func{m_i~=~m_r~{V_ic OVER {V_ic~~V_b}}~~m_c}miMmrvfoV;iceV1ic.eeV}1bR"mc<$(#(#`(#(#C!A'#$ &&7.4 Concentration of CPM.  s5  a#xdddddAdd xvq s4 #d6X@`7@##d6X@`7@#`T Eq. 2023+func{C_cpm~=~{m_o~+~m_i~~m_b} over VM_std}Ccpm om;oWo'om;ibo2om;beVM~1std $(#(# (#(#C!a'#$ 8. ALTERNATIVE PROCEDURES  s>  &&8.1 Determination of NH4+ Retained in Sample by Titration.  YY@8.1.1 An  s> alternative procedure to determine the amount of NH4+ added to the inorganic fraction by titration may be used. After dissolving the inorganic residue in 100  s> ml of water, titrate the solution with 0.1 N NH4OH to a pH of 7.0, as indicated  s> by a pH meter. The 0.1 N NH4OH is made as follows: Add 7 ml of concentrated  s>Z (14.8 M) NH4OH to l liter of water. Standardize against standardized 0.1 N H2SO4 and calculate the exact normality using a procedure parallel to that described in Section 5.5 of Method 6 (AppendixA, 40 CFR Part 60). Alternatively, purchase  s>X 0.1 N NH4OH that has been standardized against a National Institute of Standards and Technology reference material.  s>  &&8.1.2 Calculate the concentration of SO4é2 in the sample using the following equation. #x$ddddddd xoJ s4 #d6X@`7@#` Eq. 2024,func{C_SO_4~~={~48.03~V_t~N} over 100}CSOddYZ4;BB482B.B03BVqt-BN8100$(#(#(#(#C!'#$Where:  s>" && N = Normality of the NH4OH, mg/ml.  s># && Vt = Volume of NH4OH titrant, ml. &&48.03 = mg/meq. && 100 = Volume of solution, ml.  s5'  &&8.1.3 Calculate the CPM as described in Section 7.P' +((1e '#A '#&a $'#' PԌ s5 ԙ &&8.2 Analysis of Chlorides by IC. At the conclusion of the final weighing as described in Section 5.3.2.3, redissolve the inorganic fraction in 100 ml of water. Analyze an aliquot of the redissolved sample for chlorides by IC using techniques similar to those described in Method5F for sulfates. Previous drying of the sample should have removed all HCl. Therefore, the remaining chlorides  s> measured by IC can be assumed to be NH4Cl, and this weight can be subtracted from the weight determined for CPM.  s>8  &&8.3 Air Purge to Remove SO2 from Impinger Contents. As an alternative to  s> the posttest N2 purge described in Section 5.2.1, the tester may opt to conduct  s5 the posttest purge with air at 20liter/min. Note: The use of an air purge is  s>L not as effective as a N2 purge.  s5 && 8.4 Chloroformether Extraction . As an alternative to the methylene chloride extraction described in Section 5.3.2.1, the tester may opt to conduct  s5L a chloroformether extraction. Note: The chloroformether was not as effective  s> as the MeCl2 in removing the organics, but it was found to be an acceptable organic extractant. Chloroform and diethlyether of ACS grade, with low blank values (0.001 percent), shall be used. Analysis of the chloroform and  s> diethlyether blanks shall be conducted according to Section5.3.3 for MeCl2.  s5 && 8.4.1 Add the contents of ContainerNo.4 to a 1000-ml separatory funnel. Then add 75ml of chloroform to the funnel, mix well, and drain off the lower organic phase. Repeat two more times with 75 ml of chloroform. Then perform three extractions with 75 ml of diethylether. This extraction should yield approximately 450 ml of organic extraction. Each time, leave a small amount of  s> the organic/MeCl2 phase in the separatory funnel ensuring that no water is collected in the organic phase.  s54! && 8.4.2 Add the contents of Container No. 5 to the organic extraction. Place approximately 300 ml of the organic extract in a tared 350ml weighing tin while storing the remaining organic extract in a sample container. As the organic extract evaporates, add the remaining extract to the weighing tin.  s5n& && 8.4.3 Determine the weight of the organic phase as described in Section 5.3.2.2.' +((Ԍ s5 && 8.5 Improving Collection Efficiency. If low impinger collection efficiency is suspected, the following procedure may be used.  s5 && 8.5.1 Place an outofstack filter as described in Method8 between the second and third impingers.  s5< && 8.5.2 Recover and anaylze the filter according to Method17, Section 4.2. Include the filter holder as part of the connecting glassware and handle as described in Sections 5.2.2.2 and 5.2.2.3.  s5( && 8.5.3 Calculate the Concentration of CPM as follows: #x}dddddL ddxvJ s4 #d6X@`7@#`N Eq. 2025S1func{C_cpm~={~m_o~+~m_i~+~m_f~~m_b} over VM_std}Ccpmpom;oWo'om;ibo2om;fmo= om ;b`eVMW1stdS$(#(#x (#(#C!'#$where:  s>  &&mf = Ammout of CPM collected on outofstack filter, mg.   s5  &&8.6 3 3  Wet Source Testing. When testing at a wet source, use a heated outofstack filter as described in Method 5.  s5 9. BIBLIOGRAPHY  s4N  &&1. DeWees, W.D., S.C. Steinsberger, G.M. Plummer, L.T.Lay, G.D.McAlister, and R.T. Shigehara. "Laboratory and Field Evaluation of the EPA Method 5 Impinger Catch for Measuring Condensible Matter from Stationary Sources." Paper presented at the 1989 EPA/AWMA International Symposium on Measurement of Toxic and Related Air Pollutants. Raleigh, NorthCarolina. May1-5,1989.  s5"  &&2. DeWees, W.D. and K.C. Steinsberger. "Method Development and Evaluation of Draft Protocol for Measurement of Condensible Particulate Emissions." Draft Report. November17,1989.  s5"  &&3. Texas Air Control Board, Laboratory Division. "Determination of Particulate in Stack Gases Containing Sulfuric Acid and/or Sulfur Dioxide." Laboratory Methods for Determination of Air Pollutants. Modified December3, 1976.  s5H'  &&4. Nothstein, Greg. Masters Thesis. University of Washington. 0H'+((}'#0 Department of Environmental Health. Seattle, Washington.  s5  &&5. "Particulate Source Test Procedures Adopted by Puget Sound Air Pollution Control Agency Board of Directors." Puget Sound Air Pollution Control Agency, Engineering Division. Seattle, Washington. August 11, 1983.  s5 && 6. 3 3 Commonwealth of Pennsylvania, Department of Environmental Resources. Chapter 139, Sampling and Testing (Title 25, Rules and Regulations, Part I, Department of Environmental Resources, Subpart C, Protection of Natural Resources, Article III, Air Resources). January8,1960.  s5 && 7. 3 3 Wisconsin Department of Natural Resources. Air Management Operations Handbook, Revision 3. January 11, 1988. +((    Moisture Determination  s4  Volume or weight of liquid in impingers_______________ ml or g Weight of moisture in silica gel_______________________ g  r5  Sample Preparation (Container No. 4)  s4  Amount of liquid lost during transport________________ ml Final volume _________________________________________ ml pH of sample prior to analysis________________________  s> Addition of NH4OH required? __________________________  s> Sample extracted 2X with 75 ml MeCl2? ________________  r5  For Titration of Sulfate  s>  Normality of NH4OH ___________________________________ N Volume of sample titrated ____________________________ ml Volume of titrant ____________________________________ ml  r5  Sample Analysis  s4m  ______________________________________________________ Weight of Condensible Particulate, mg Container __________________________________________ number Final Weight Tare Weight Weight Gain _______________________________________________________ 4 (Inorganic) 4 & 5 (Organic) _______________________________________________________ Total _____________ Less Blank _____________ Weight of Condensible Particulate _____________ _______________________ Figure 2023. Analytical data sheet