NYC-WTC_000209888

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LJiS GROUP it ; -'26/0: Lab Sampxe No. loer T-zcs mm qcP Clienc Spl. Nc Filzer Area 355 mrr d :.D. Disk Nc. Instrument - EM L-j ORX

Screen Magniixcazion 15.40QX (GG; Area 3LI24 mm^2 Comments. Acc. Vol-age 3G kV No. GC co oe Analyzed 4 Struct 3 ■ mm

GO. structure Structure Type Length I.D. of Structure N or EDS ---------- .-------------- J (Nonasb. No. >0.5 um No, Coord. F BIc Im < 5 um » 5um jchrys.! Amphibole Nonasb. iAmbig./ND Elements)

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lj. i I I lL I Photo No. (from 1 in 5 asbestos— Identify all structures using EDS; Check diffraction for asbestos Store ail unrepeated spectra containing aampiea) Grid acceptance:! structures up to 70s/i?im (1st 4) <S0X undisaolvea filter, overlapped or folded Struct, s > 0.5um > 5:1 Aspect Ratio <10% particulate coverage >50X coverage N= Not Observed (EOS spectrum or diffraction pattern) at least SO unfolded or overlapped grid squares Totals Positive diffraction pattern properties conforming <SX holes or opaque areas F B C M > Sum to laboratory identification criteria observed. -Unused porUon I of niter For ehiTBoUls: a.73nm apacins for (020) reflecUons, O.S3nm ipscing for the layer line repeat. atreaViof Chrysotile -Avoided portion of (110) and (130) reflecUons. of niter For amphiboles: Q.S3nm layer Une repeat, and approx. ,, . PorUon of niter (2mm wide) 3.5 ratio of non-lvtnned layer line spot apacini la j (I ' aubjael to axsminaUon y Amphibole layer line repeat distance (0.53nm). \X= SOS spectrum conforming to laboratory identification criteria observed. AMPH180LES I Ambiguous P» Single Fiber (1-3 intersections = 1-3 fibers) ; Amosite i 3= Bundle (>3 fibers <1 fiber diameter apart) 25mm filLar j Crocidolite • Non —asbestos C= Cluster 1>3 Intersectlana) M= Matrix ----------- - Stappinc Ruieai I Anthophyllite : .MSD= Na Structures Detected >50 i/G.O. ar in lai 4 G.Q. I Tremolite I , 1 Actinolite i Non-Identified j L\DATA\PR|VATE\b(IKBC\CAD0\rE«3 fl/2Z/OB

CITY_21MC100_002849247

NYC-WTC_000209889