TEM analysis results for bulk sample, Oct 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAB GROUP 55.39 ~ 10/05-'JI Lab Sample No. 2^212 ICei- DN-pe MCE 2 5 rpm Operator Giienc Spi. No - L0/S -42 Filter Arsa 395 rm'2 Znscrumenc i.D. fy io Grid I.D. Disk No. Screen Macr.ificat ton '.5,400X (GO Area 0,01124 mniO Csranven.t3 Acc. Voicaca a D kV No. GO co be .Analyzed .4'7 Struct. Corsod. to 70 3/mm’^2.}

.30, I structure SLructure Type Length I.D. of Structure EDS >0.5 um (Nonasb. No Coord. No. F H C M Sum Chrys Amphibole Nonasb. Ambig./NO Elements) < 5 um I

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J________ Ll_ I ______ _____ h Photo No. (from i in 5 aabestoe- Identify all itructurea mini EPS Check diffraction for asbeatoe store all unrepeated apectra—' cantaininf aampiea) Grid acceDLancg:| atructurei up I (let ♦) Struck = > 0.3um 3e > 5;I Aspect Ratio <S0X undisBolveJ filler, overlapped or <10% particulate coverafe >S0X ccverage Ns Not Obaerved (EDS •pectrum or diffraction pattern) at leant 20 unfolded or overlapped arid aquaren Totals <SX hole* or ooaque areas F B C M > Sum ^/= poalUve diffraction pattern propertiea eonforminK to laboratory IdenUflcation criteria obeerved. ■Uauaed portion For chryaotilei a.73om ipacina for (OM) ranoctlona, 9( niur O.SSniB apaeinf for the layer line repeat, atreakin< Chrysotile I of (110) and (130) reflecUona. -Avoided portion of nilor For amphlbolea: O.danm layer line repeat, and approx. PorUon of niter (2mm Vidal Xi ratio of Qon-tvlnned layer line spot epacinf to aubjeet la MaminaUon Amphibole la/ar Une repeat dlatanoe (0.&3am|. \/= EIIS ipectrum conforminc to laboratory id'intificatlon criteria obaerved. AMPHIBOLES Ambiguous F= 3ln<le Fiber (l-3 InteraecUona s 1—3 fibera) Amosite a= Bi.ndle (>3 fibera <1 fiber diameter apart) CljaUr(>3 intaraecUons) 29min nitsr Crocidolite Non-asbestos Hs Matrix ------ 1 SLopplnl RuIm: I Anthophyllite NSD- No Structuras Detected U\OATA\P«VAT8^MIXEG\CADO^7*EMa 9/22/90 [ >60 i/C.a. or In lit 4I o.a. I Tremolite Actinolite Non-ldenlified

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