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4520• = Federal Register / Vol. 59, Na. 20 / Monday, 'January 31. 1994 ! Rules and Regulations .. TABLE 1B.--UST of APPROVED INORGIANIC TEST.PROCEDURES--CORtI!?lled ^ •-Parameter, units acid method= Ft Reference(method number or page)SE methods 78th EdASTM ., USGS2AA direct aspiration .1 3111 8ICP/AES 7 3120 B64. 1-3735-85 973.54.0Fume Photometric . 35W Na D Note 34_SSpecific conductance, . rnicrornhos/crrl »......65.Sulfate( SOy� 4. "" 251Q 8. 01125-91(A) . F-178Q.85 ' 973.40.3 Automated colorimetrtc(barium chiorandatGravimetric 4&X--SO.-2 CW -.,.,»...-....... _.. �..«:...:.......: 617.Suifide�, »«..._ 375.4 or or D _� 5ifi-9p.�....._..... .__...... 825.54?r -.. .30 CCoiorimetric(methylene blue - .�.�... 376.1 45013--$-:E ....... 4260 67.Sulfite as } �"""""" 3762 4500-5-s D Titrimetric CKodineiodate) ..._._.. .........»...._ 68_Surfactants.mg1L; 377.1 4500-.Sp,-2 B Coforrrn�tnc(methylene blue) ........«,....«__ 425.1 5540 C 69.T ' {3 emperwme.'C:Themxm* 0�8 tris .................. ._ ».»..«.... 170.1 25,50 B 70. Thalirum-Totalby: ,• mg/L; Digestion+ followed ---- Note 32. AA drect aspiration. �aC AA fune. .._..........«. ....._«... - 279.1 3111 B ICP/AES:or --« 2792 71.Tin-ToW.4 6200.7 3120B AA direcaspiration Digestion followed by AA fura ,or �«- «_.... 282.1 3111B «._........ ...� t-3850-78 _ _ 282.2 3113 B ICP/AES Y ...._....«..._....».._.....«.._ 0200 7 ' 72. Tdanium-Total,4 nxVL; Digestion4 followed by. AA direct aspiration AAurnace -- ---« 283.1 3111 D DCI' .._... «..«._. 2832 _ 73.Turbidity.NTU ........-----.........:. _-... «. ».•---- «.� ........«... - » Note-3.4. 74. NephelorneftVona Total 4 Mg-Di o ` .. .__ 180.1 2130 B - 01889-88(A) _...«...«... ...._ �tnlL:_ gesiin4_followed - =1338(70-85_ - - AA direct motion 2 AA furnace 88.1 3111 D .._.,» -._....-...__....._r.» 288.2 3CP/.or _ 15200.7 3120 B Cofortmetric(Gallic�+d1 .._.«..........._».... -......"..».. :«..•'-------__ D41�82(88) Nota 34. 75.Zino--Total4.mg&:Digestion4 followed . '«"-.""- 3500-V D AAA ffurnaace direct piration x .....» -.-�» � 289.1 3111 B Di 691 -9()lA or B) 1-3900-85�.•», 874.273 9 ICP/AES� ............"...,'«_.""".«.""".. 2892 �C 0.37. DCP,36 or ._.._.......-.« 6200.7 3120 B - Colonmetric (Diti-izone)or «. - «.»... �.« 3500-Zn E'er 04190-82(88) Nate 34: (Zincon) ........«- ......._...._.. 3500-Zn F .... ......_...... Table !B notes: - .. .-......... ... . ..-... "Methods for Chemical Analysis of Water and Wastes". Ernrironmentai Protection - _ annals f -tan M '; EPA-G00/4-79-021?. Revised March 1983 and 1979 where applicable. • Environmental!Monitoring Systems Laboratory-Cin- 2 Fis1of W M.,1" et at, "Methods for Analysis of Inorganic Substances In Water and Fluvial 5edmen Ues aMettiods Oer f Analysis investigations of the U.S. eo iW Survey. Denver,CO, Revised 1989,unless otherwiise�stated.the Interior.Tech- _ 4 For the detenNnationnot totalom�etals��Association I°�ena beat Chemists,"methods manual, 15th ed. (1990). - WaterWstes.and to processing A digestion Procedure is required to saiubif'¢e suspended Wastes. 1978 arxt 1 ° e.Corti Vigor,Two digestion f- Ocedures are 715 Methods for Chemical Analysis of Water and acids (section 0.1.4 }s ". One (section 4.1.31, is a vigorous digestion ushng lift ) Preferred;however.the analyst should bec•.autionN that a�• A less vigorous digestion using nitric and hydrochloric a Gofortrnetric Procedure Is to be employed, it is necessary to ensure that all digestion nW not suffice for aR samples types.active state- In diose situations`the vigorous digestion Is to ss praterred organo-metaific bonds be broken so that the metal is in a re- containi159 large amounts of organic materials may also benefit � Certain that of no tune does the sample go to dryness.Samples acid wiil convert antimony and tin to insoJuble oxides and render them una d forOn' however, vigorous digestion wit11 concentrated n tric certain efemerttg stx;h as arrtimorty, arsenic, the noble metals, moi-,Use oI ICP/Ai:S as well as determinations for Procedure and In al cases the method write-up should be consulted • senium, silver. tin, and titanium require a modified sample dkiestion . NOT!: If the digestion procedure for direct aspiration AA Includedonite in one of the mb mor cautions. Procedure must be used_ approved references is different than the above.the EPA