Asbestos TEM micrograph data sheet, Oct 26 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP #: C .'26/01 Lai; Sample Nc . Rxicer Typ-Z MCE 3 5 rnji Operaccr Ci:.er>r. Spi. No. Fiicsr Area 3 55 miiCz In£;trument I.D. EM i: CRX Grid I.D. Disk Nd. Screen Magnification 16,400X {GOi Arsa (3,01124 mm'^2 Comments Acc. Voltage 8 0 kv No. GO CO be .Analyzed _£ ( 3.147 Struct. Corsod. co 70 s/mm?2.i

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

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Photo No. (from 1 in 5 asbestos- Identify ell atrucLurea using EDS Check diffraction [or aabeatos J____ _____:» Store all unrepeated spectra—^ containing samples) Grid acceptance: I structures up to VOa/Am (l>t 4) Struck - > Q.5um & > 5:1 Aspect Ratio <S0X undiaaolvea filter, overlapped or folded <10X particulate coverage >50X coverage Totals Na Not Observed (EDS spectrum or diffraction pattern) at least 20 unfolded or overlapped grid squares holes or opaque areas F B C M >- Sum Pciitive diffraction pattern properties conforming to laboratory identification criteria observed. •Unuasd portion For cHrysoUls: 0.73nm ipacini for (020) rsflBcLioni, Of niter O.!i3nm spacing for the layer line repeat, streaking Chrysotile of (IJQ) and (130) refleetlons. 'Avoided portion or niur Fo,* amphiboles: O.SSnm layer line repeat, and approx. Portion of filler {2mm wide) 3.: ratio of non-twlnned layer line spot spacing to ■ubject to Bximination Amphibole layer line repeat distance (Il.dOnm). EDS spectrum conforming to laboratory Ambiguous identification criteria observed. AMPHIBOLES Fa Single Fiber (1-3 interaecLloni a 1-3 flbera) Amosite Ba Bundle f>3 fibers <1 fiber diameter apart) C= Cltalar (>3 inleraectiona) 25tnra fllUr Crocidolite Non-asbestos --------- Ts^ping RuIm: I Anthophyllite M= Matrix NSDs 40 Structurei Detected ! >50 «/G.O ar In 1st 4ir\ Tremolite Non-Identified Actinolite k\DAT/\PRIVATE\MlkBC\CADD\TEM3 o/22/oe

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