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4506 Federal Register f Vol. 59, No. 20 /.Monday, January,. 31, 1994 I Rules and ,Regulations TABLE 1B.--LIST OF APPROVED )NORGANtc; TEST PROCEDURES-Continued Reference(method number or page) Parameter,units and method Std. methods EPA 5 78Ji Ed. ASTM USGS2 Mer - AA furnace 2042 3113B - l ICP/AES .................................... 5200.7 3120 B - 6.Arsenic--ToL€4 -,"L - - Digesbon4 totlowed by 206.5 AA gaseous hydride.................................�.___ 206.3 314 8 4_d 02972-38{S} f�30o2-85 AA furnace .------------------•---•........ .---------- _.._. 2062 3113 B 02372-$8{C} ICP/AES;-,or -...,--•••--••__•............................... 5200.7 3120 B Colorimetric(SDRC) -_.................__................ 205.4 3500--As C - 02972-88(A) F-3050-85 7. Barium---Totaf4,rrg/L;Digestion4l tollvyed by: - AA direct aspiration 38 208.1 $111 D .. i-3GFs4-A5 AA furnace ...................................................... 2062 3113 B 04382-91 iCP{ACS 5200.7 3120B DCP. ...............................................•,.._-....... ...... .------------- -------------------------------- -----.------ ---..--•-----•------- dote 34, a- eeryUium--Total*, mg/L; Digestion4 followed by: AA direct aspiration ....................................... 210.1 3111 D D3645-$4(88)(A) h3095`85 AA tumace ...............................................-___-- 2102 3113 B D3645(88)(B) ICP/AE55200.7 31208 DCP,or .................... .................... 04190-$2(88} Note 34. Colorimetric (alum'snon} 350D-Be 0 9. Biochemical oxygen demand(BODS), rn ' Dissolved Oxygen Depletion .......................... 405.1 5210B i-1578-785 973.443,'p.17.9 10.Boron-M-Total. rng/L: Colorimetric(curcumin) .................... 212.3 45006-88 i-3112-•85 MPIAES,or.....................................--........... 5204.7 3120 B • DCP ....: ...........................•---..........__....-- ......_............... D4190•-82(88) .-............... Mote 34. 11. Bromide.rsigfL Titrimetric,or .................................................. 320.1 -_._...._ D124682(88)(C) 1-1125-85 p.S44.ta- 12. Cadmium-Toa-', mgDigestion4 followed ' by: AA direct aspiration 38 ................... 213.1 3111 S or C D3557-90(A or B) 1-3135-85 or I- .974.273,p.378_ 3138--$S AA furnace 2132 3113B D3557-90(D) ICP/AE538 _ 5200.7 3120 B f-1472_-85 DCP,38 ... ........ ..:... .............................. ........................ 04180 82(88) .... N6te 34. Vottametry11,or .......... 103537-90(C) Colorimetric(Dithizone) ................................. ................I. 3500-Cd D 13. Catciurr-Tota14, mg/L; Digestion 4 followed by: - AA direct aspiration........................................ 215.1 3111 B D511--92(B) 1-3152-85 ICPIAES ...... 5200.7 3120 S DCP,or ........................................•---••--•--------- -•---......--•----- -•-- -.._ :.._................_....... ................. Note 34. Titrimetric MDTA) ---------•.__-_.•__.-_-.._..-------__- 2152 3500-Ca D 0511-•92(A) 14. Carbonaceous biochemical oxygen demand (CBOD3).mg/L.72: - - Dissolved Oxygen Depletion with nitrification .................... 521 D B inhibitor. . . - 15. Chemical oxygen demand (COD), mg/L; 410.1 5220 C D1252-$8(A) . 1•-356E-S5 973.463,p. 179. Titrimetric,or. 4142 t-3662-$5 410.3 _-._ _ ...._...._.•- . . Spectrophotonr etric,'manual or.automated .: 410.4 5220.0'-. 01252-88(8) 1�35a1�85 - Nates.13 or 14. _ 16.Chloride.mglL:.: Titrimetric(silver nitrate) ...............................: ................ „, 4 00 C1.B D512=$9(Bj _ . - 1-1183-85 Or(Mercuric nitrate) ....................................... 3252 4500-C3 C ' D512-B9(A) F-?184-$5 . 973,513. Colorimetric,manual or.................................. ----------------- •.-._------ ------------- __-------------__-............. 1-1187--85 Automated(ferricyanide) 325.1 or 4504-C1 E- 1-2187-•135 325.2 17. Chlorine--Total residual,rr%gVL;Titrirnetric: . _ . Amperometric direct ....................................... 330.1 4500-C1 D D1253--86(92) lodometric direct ...................................... 330.3 4500-•C1 S 'Black titration ether end-point 15 or ................ 3302 4500-C1 C DPD•-SAS.:. ... ....................... .330.4 x+50(}-C1 F Spectrophotometric, DPD .............................. 330.5 4500•-C1 G Or Electrode :. .......... •------. Note 16. 18. Chromium VI dissolved, mg/L;0.45 micron fil- ration followed by AA chelation-extraction-or................:............. 216.4 3111 C .... 1-1232•-85 Colorimetric(DiphenylcartJazide) ................... -__--_...._. _ 3500-Cr D' D1687-92(A) 1.1230-85 19: Chromium-Tota14, mg/L; Digestion 4 fol- lowed by: