NYC-WTC_000177644

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP 56 09 - 10/05 Sampie No 5 0 325 Filter Tyxe MCE 25 mm Coerator CLienC Spl . No, SH3-L>:-G-13/5-13 Filter Area 333> mm 2 Instrument I.D. EM 10 IRX Disk No, Screen Magnification l->,4ccx (GO) Area 0.01124 mm' Corr-ments Acc. Voltage 3 0 kV No. GC to be Analyzed 4 ( 3.147 Struct. Corspd■ .co 70

EDS GO. structure SlJ*ucture Type Length I.D. of Structure (Nonasb. No Coord. No. >0.S um F B C M < 5 uni Sum Chrys. Amphibole Nonasb. Ambig./ND Elements)

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_______ I Phalli No. (from 1 in 5 aabeatoa- Identify ail atructurea using SPS Check dlffracUofl (ar oabeatoo Store all unrepeated spectra — containing samples I Grid acceptance;! structurea up to 70g/l¥itr (l«l 4) <SOX undiaaolvea Hl ter, overlapped or foldea SLrui:L ~ > O.Sum A > 9 1 Aspect Ratio <IOX particulate coverage >50X coverage Totals N= Not Observed (BOS spectrum or diffraeUon pattern) at laaat 20 unfolded or overlapped grid squares <5X holes or opaque areas ---- F B C M » Sum Fosltive diffraction pattern properties conforming bj laboratory identification criteria observed. for chrysodfe; C.73nm tatclng for (020) renocUano, O.SSnm spacing for ths laver line repeat, streaking of (110) snd (ISO) reneeUona. ■Unused portion of filler 'Avoided porUea Chrysotile I TT or niur Por amphiboles: O.SOnm layer Une repeat, and approx. FarUon ar rutar (Zmm aide) 3.3 ratio of non-t«inned layer Une spot spacing lo iub]»ct to axaminaUoa Amphibole ; layer Une repeat distance (O.SDnm). </= EOS spectrum conforming to laboratory Ambiguous identification criteria observed. AMPHIBOLES Single Fiber (1-3 intersections = 1-3 fibers) Amoaite a= Bundle '>3 fibers <1 fiber diameter apart) ZBrnm filLar Crocidolite Non—asbestos C- Cluater intenectionii — 1 Stopping Rules: I--------- - Anthophyllite M- Matrix >50 i/G.O. or in 1st 4 G.O. { NSDs No Structural Detected Tremolite Non-Identified .Actinolite L:\D*TA\PWVATE\MIXSC\CAD0'7BM3 a/32/aa

CONFIDENTIAL, CITY_21MC100_003473623 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177644