TEM analysis lab report for sample 5650, Oct 10 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS l;^.e group tt: ; .'10/Cl Ldb Semple No. pOHPC Filter Type MCE 35 mm Operator Ciienr Spi. No. NSHS-ETk-10/1C-01 Filter Area 335 mm 2 Inst.rument I.D. EMIC Grrd 1.0. Disk No. Screer Magnification :6 4007 (GOI Area 0.01134 mm"3 Comments Acc. Voltage HO kv No. GO co be Analysed 4 147 Struct Corspd. to £ / mm 1

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

J

Photo No. (from I in 5 asbestoa- Identify *11 structuree uaini EDS Check diffraction for aebeetos Store all unrepeated spectra — containing samples} Grid acceptance: I structures up to TOs/^m (iBt 4) <50X undiasolved filter! overlapped or folded Struct, s > 0.5um & > 5:1 Aspect Ratio <10% particulate coverage >50% coveraie Totals Ns Nit Observed (EDS spectrum or diffraction pattern) at least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M > Sum positive diffraction pattern properties conforming to laboratory Identlflcalion criteria obaarvad. ■Unuaod portion Fer chrysoUlt: 0.73nm spacing for (020) rsDoetions. of fllUr Chrysotile | O.:13nm spaeing for the layer line repeat, straaicing -Avoided portion of (110) and (130) renncUena. of niter Par amphiboles: O.SOnm layer line repeat, and approx. Portion of niter (2mm wide) 3.11 ratio of non—twinned layer line spot spacing to ■ubject to ■KaminaUon Amphibole layer line repeat distance (0.&3nm). vY= EtS spectrum conforming to laboratory idnntiflcation criteria observed. AMPHIBOLES Ambiguous F* Single Fiber (1-3 Intersections s 1-3 fibers) Amosite Bs Bundle (>3 fibers <1 fiber diameter apart) C= CluaUr (>3 inLeraectlona) SSmm niUr Crocidolite Non-asbestos ------ JSUpplnt Bules: A---------- Anthophyllite M= Miitrix NSDa No Structuraa Datactad >90 s/C.O. or in 1st 4 C.O. Tremolite Actinolite Non-Identified L:\DAT4\P1UV4TE\ 1IIKSC\CADDVE1I3 »/22/9e

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