TEM analysis lab report for sample 6CL-2, Oct 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAEGROUPJ: 1) ■ 0 & '■ I):

Filter' Type MC^ 01' ■ Lab Sample N.’ 6CL -^2 e: .2\re5 ISE mtn 2 Grid I.D. Disk Ho. Instrumert I.D. EM 10 Scree!! Magnification 16 4 3OX (GO) Area 0.01124 mm"?. Commenr.s.

No. GO to be Aiialyzed 4 ( 3.147 Scruct . .Corspd. co ~'C s/mm"2-: Acc. Voltage 80 kV

GO. J Structure Structure Type Length I.D. of Structure EDS >0.5 um (Nonasb. No Coord. No. F B C M Sum Chrys Amphibole < 5 um Nonasb. Ambig./ND Elements)

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A

! ! Photo No. (from 1 In fi oalieoLoa- Identify all structures using BPS Check diffraction for asbestos Store all unrepeated spectra containinf samples) ^id acceptance;! structures up to 70a/&n (i>t ■*) <S0X undlasolved filler, overlapped or folded Struct = > OaSum & > 5:i Kapect Ratio <10X particulate coverage >S0X coverage N= Niit Observed {EDS spectrum or diffraction pattern) kL least 20 unfolded or overlapped grid squares Totals Pcsitivo diffraction pattern properties conforming <SX holes or oosque areas F B C M > Sum to laboratory identification criteria observed. For chrysotile: Q.73nm spacing for (020) reneetiana, O.ilSnm spacing for the layer line repeat, streaking JnuseO porUoa of nitsr 'Avoided portion Chrysotile I of (110) and (130) reneetiana. of niter For amphiboles: 0.93nm layer line repeat, and approx. Portion of niter (Emm wide) 3.£ ratio of non-tvinned layer line spot spacing to subject to exaiBinalioa Amphibole lajer Une repeat distance (O.S3nm). EOS spectrum conforming to laboratory Ambiguous Identification criteria observed. AMPHIBOLES Ps Sirielc Fiber (1-3 intersecUons s 1-3 fibers) Amosite Bs Bundle (>3 fibers <1 fiber diameter apart) SSmin niter Crocidolite Non-asbestos Cs Chiater (>3 intersections) ------- Slopplnf Rule.; I------ Ms Ma trit Anthophyllite MSD= No Structurn Dotec tod U\D*T.t\PHIVATS\MllCSC\CADD'5riM3 0/22/06 [ >50 a/C.0. er In let 4 C.O. Tremolite Actinolite Non-Idenlified

CONFIDENTIAL, CITY_21MC1OO_OO346986O SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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