NYC-WTC_000208957

NYC 9/11 Public Portal Document

Jun ID 02 02:03p Aintek Enuironmenta1 Carp (212)768-0759 SCIENTIFIC LABS 21^ of; ojsz r.aj.-i P- * ; FEB-07-2002 17=40

listening the accuracy of the derermination.'* 7,34 Asbestos Siandards, as outlined in 3,1.2. 7.2 Traiuinissioi) flteiroa .Hleroseape । .t 80 to 7.35 lygoti' Tubing, or equivaJeoL 120 IcV TEM, capable of performing electttm dil faction. 7.36 Smail Vacuum Pump, that can maintain a pressure : with a (luoreacoDt seton inscribed with calibre^ I srioa- ofJlkPa. tjons, is required. The TEM murt be equipped wiili energy 7.37 Peiri Disires, large jjnss. approximateiy 90 mm in , dispersive X-ray speettwoopy (EDXA) and it mus have a diaawttt. scanning tnssmission elficifon miicroscapy (STEM acoch- 7.38 Jafflr fVashsr, stainless steel or alumiaum tnesh meat ot be sapabie of prodasine a spot siz! of less iku 250 screen, 30 to 40 and approxiraareiy IS mm by 50 mm nm in diaioeter in cronever. in size. 7.3 £itergy l^isptrsiut X^ray Systtm ffCXA). 7.39 Copper TEM Fi/uler Grtds, 200 mesh. 7.4 High Vacuum Carbon fraparuor, with rotatii g stage. 7.40 Carbon E'taporatir Hods. 7.3 High ffftciercy Paniculait Air (HEPAi, fiiien d aega- 7.41 Lens Tissue. ure flow hood, 7.42 Ashltss filter Paper filters, 90 ram diameter. 7,6 Exhaust or fume Hood. 7.43 Gurnmed Paper Reiri/drcemertt Rings. 7.7 Pariic!e-/ree fVacer (ASTfd Type U. sec Spectfienrior. 7.44 Wash Saules, plastic, T.iS Reagent .ileehtl, H?LC C-rede (Fisher a995 or DI 133). 7.8 Class Beakers {ib mL). equivalent). 7.9 Class Sample Containers, with wide mouth sc -ew cap 7.4d Gptning Mesh Eerttn, plastic, 1.0 by !.O ram. (Sp«tra.-M«h fL46-iiO or equivalent). (200 mLl or equivalent sealable watalncr (height of i be glass 747 niifraettcn Graiing Ripliea. sample container should be approximately 13 cm hi jh by 6 era wide). 7.10 H'aterproofMarkers. 3. Sampling Precedwe for Mkroncaum Teclmlqne 7 II 7or«ps(tweezers!. 8,1 For sampling »bestw<oijMiB«g du« in either indoor 7,12 ulirasonie Ba/h. table top mode! ■( lOO W), or outdoor eaviioumeDts, commercially available cassettes 7.13 Oradutaed Pipettes (1, 3, 10 rnL sizes!, (lass or tnusi be used. Air monitoring cassettes cenraining 23 mm or plastic. 37 ram dianKter mixed cellulase ester (MCE) or 7.14 filter funnel, either 25 mm or 47 nun. ilass or pciycwiwww (PC} filter meaifaituies with a pore size less disposable. Filter funnel assemblies, either glass ot dis josable ±in or equal to 0.3 jjm arc required (7.31). The number of plastic, and using either a 25 mm or 47 mm diameu fUter. samples collected dsptmdi upon the specific circumitancesof 7,15 Side Arm filler flask. 1000 mL. the study. 7,! 6 .i/iiud Celiulase SatrfMCS .^Jembrsne fU (w. 25 8.2 Maintain a log ot oil penineol sempling in&rmuioa or 47 mm disroeter, sO.22 p.m and 3 iim pore size. and sampling locations. 7.17 Polycarbonaie (PCJ filters. 25 or 47 mm Oit I me tar. 8.3 Sunpliag pumps and How iodicaiars shall be eali' SO.2 [tin pow size. brated using a cerdfied standard apparatus or assembly (see 7.18 Stonge Containers, for the. 25 or *7.ram fill «.(fof Prwtis* 0 3195 and 7.29). : irciiivinj). 3.4 Record al! calibradoo infonnttdon (S). 7,1? Class SBdes, ifpfvdfnatity 76 mm in size. 8.5 Pejfdrm i leak checie of the samplinj lyatem « each 7.20 Scalpel Slades, No. 10. or iqui valent nntpUng ate by acuvutiag the pump (7.29) with the closed 7.21 Csbi^-lype Dtsieaiior, or low temperature drying saitlpilnj owsens in line. Any air flow shows that a te*k is oven. preseci chat must be eiiouaated before initining the sam- 7,22 Chlwo/iirm, rttsgeai grade. plieg operatioiL 7.23 Acetone, reagent grade. 8.6 Aneeb the sampling eauatte co the sampling pump at 7.24 £>tmeiJiy(finnaifada (£>Mf). the outlet side of the cassette with plastic tubing f7.35). The 7.25 Glacial Acui; Acid. plastic tubing must be long enough in that the sample areas 7.2S J-iruthy!-2.pyrrolidorie. can be reached without intaference rrom the sfuspiiog 7.27 Plasma Asker, low temperature. pump. Attach a clean, apprtsiiraatcly 25.4 mot long piece of 7,28 pff Paper. plastic lubing (6,35 mm internal diimoeri directly to the 1.29 Air SampUftg Pump, low volume p«raonal-ty jt, ca- inlet orifice. Use this pieze of tubing as the sampling nozzle. pabli of ichieving a flow rate of 1 to 3 L/min. Cut the sampling end of du tubing at a 45* angle is 7,30 Rotsmtier. illustrated is Fig. 1. 77m exact design of the nozzle is not 7,31 Air Sampiins Cassettes, 25 rtwa or 37 I, coD’­ critical as long u seme uaeuum break is provided to avoid ainiag 0.8 pun or smaller pore size MCE or PC filters. sitnply pushing rite dust antsnd on the surfice with the 7.32 Cork Barer, 7 mm. boizle raiher than vucuunung it lorn the zassetze. The 7.33 ,'fai>-Asixst03 fidintrai, re/erMces as outlined in 6.1. interaal diameter of the nozzle and Sow raw of the pump may wy as long as the air velocity is 100 (slO) cia/a This air velocity calcMlatioa is based on an ittrernal aecpliag tube ■ Riza’M OVnotoii; 4»vnau StSo) .KMrietn diiametcr of 6,35 mm at a flow rare of 2 L/min. Ch«n.'c*l W«Ai«0w. PC. rw WKSOMM 0(1 lU WU0» Of W MU Mt 8.7 Measure and detenainc :hc »wpic area of inwcsL A 11«M by IM AM<ricM OMmiMi taaiy. M .'tMbir Sttiuiaralt/tr t kidwoO' IbH Uo. racH. OMC U’Jt- Its die Voind Smc .’to WCWtM Me naiiual fomutarf. U5. nunBuaideal ConeinoA ibk W5PCU Itocvwllc. '■!>«»»;« inKlUMK»rIHe DuPw Ct.

3

CrTY_21MC100_011249601 NYC-WTC_000208959