Laserfiche WebLink
1 , <br /> 11D D 4874 <br /> ' SIDE VIEW TOP VIEW <br /> ' THREADED ROD <br /> / I <br /> O O O• I 1 <br /> 0 i PIPE I 11 i ; <br /> NUT WASHER O O O <br /> / <br /> COLUMN WALL <br /> ' t O O <br /> r <br /> ' t / PIPE RISER <br /> CtAMP 1 I <br /> t , <br /> t <br /> t t BASE PLATE <br /> 11 1 i <br /> GASKET <br /> ' Fla 2 P.athro oottttyumilen <br /> mm deep and 50 mm (2 in.) long. These grooves shall be chemicals or equivalent are preferred.10 <br /> positioned in a ray originating from the center of the disk. 6.2 Other grades of chemicals may be used, provided that <br /> ' 5.1.5 Tubing used in the apparatus shall be of inert the reagent is of sufficiently high purity to permit its use <br /> materials, for example,glass, stainless steel, polytetrafluoro- Without compromising the objectives of the testing. <br /> ethylene lined. The outer diameter shall be 6 mm(1/4 in.). 6.3 Demonstration of acceptability through reagent blank <br /> 5.1.6 Substitution of materials of construction of the data at or below the quantilation limits for all analytes of <br /> ' column or any of its parts is acceptable, as long as it is interest is required. <br /> demonstrated that levels of contamination for analyte(s) of 6.4 Unless otherwise indicated, references to reagent <br /> interest are equal to or less than those specified. Any water mean water as defined in SW-846, Method 1311, 5.2. <br /> modification of the apparatus as described in this test See reagent water under the terminology section of this test <br /> method must be justified,documented,and delineated in the method (3.1.1). <br /> report. NOTE I—Reagent water is defined in SW-846 as water in which an <br /> 5.2 Pressurized Reservoir Vessel,which is used to contain interferant is not observed at or above the method's detection limit of <br /> ' the leaching fluid, is constructed with requirements similar the snalyte(s)of Interest. <br /> to those of the leaching column with the following excep- <br /> tions: (1) no diffusion disks are used,and (1)it is equipped 7. Safety Precaution <br /> ' will a top port for refilling the fluid. <br /> 5.3 Balance, 10-kg capacity, with a 1-g sensitivity. kP27 I General operating pressure should not exceed 2nert <br /> 3.4 Compressed Gas Source,preputrified nitrogen or argon mat ria pare) with materials as defined herein. acts inert <br /> materials are available that tart be used to manufacture the <br /> with a two-stage delivery regulator (0 to 350 kPa) (0 to 50 column which will withstand pressures above 275.8 kPa(40 <br /> ' psig), and a pressure gage capable of measuring the pressure Psig), <br /> in the head space of the liquid reservoir to within t7 kPa(I <br /> psig)• <br /> 'a ltroPW Chmticate American Chemical SCCierY Speeiiraflow. Amctican <br /> C3etnial Society,wuhinpon,DC.For suggession,on the W Wy of rtateoo tat <br /> 6. Reagents and Materhls listed by the Amencan CLcmtut Society,see Analar Mardor&for Labormoy <br /> Chrmicah BDH lid,Poole,DoneL UX,and the UNred SWa Pharrmnpm <br /> 6.1 American Chemical Society (ACS) Reagent grade and Nodoad F—lary, u.s. Phumaceuosi Convention, Inc. (USP" <br /> Rockville.MD. <br /> ' 3 <br />