TEM analysis lab report for sample 5649, Oct 9 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP n: 5 6 4.9 - 10/09/01 Lab Sample No. GOt'S: Filter TYoe MCE mrri /? p Cli-ilii. Spl. No. NSHS- £-R-lC/9-04 r Arsa 33 5 iTim_^.2_ isirumenc I.D. EM l.(CRM Grid I.D M M‘ 3 OiSK N.,'. Screen Magnification lt;,40CX (GO) Area C.0LL24 mir"! Conwuencs Acc. Voltage No. GO be Analysed 4 147 Srrucc . Corspd. co 70 3

GO. Structure SlrucLure Type Length I.D. of Structure EDS >0.5 um (Nonasb. No Coord. No. F B C M Sum Chry^ Amphibole Nonasb. Ambig./ND Elements) < 5 um f r 11 5 /(

lU__ _____________________________ ___ Photo No. (from 1 in S asbestos- Identify all structurea using EDS Check diffraction for asbestos store all unrepeated spectra — contjiining samples) FcridTicceptance'^^^^^^jitructur^^**^!® (t»t 4) Struct X > 0.5um A > 5:1 Aspect Ratio undiMolvcJ lilLer, overlappea or folded l<10X particulate coverage >50X coverage N= Nut Observed (BOS speeUum or diffraction pattern) |at least 20 unfolded or overlapped grid squares Totals Positive diffraction pattern properUes conforming Mkv or opaque areas------------------------------------ F B C M > Sum to laboratory identifleation criteria observed. ■UnuMd portloB Fer chrsrsoUia: O.TSnm spaeins far (020) rariecUana, of ruur Chrysotile D.JJnm spacinf far tha iayor line repeat, straafci&c -Avoided portion of (no) and (130) renecUona. ar niter Fer atnphlbelas: 0.83nm layer Une repeat, and approx. I f PerUon of niter (2mm Vida) ratio of non-tvlnncd layer Une spot ipacinf Le subiect to U I axaminalioB Amphibole layer Une repeal diatanca (0.53nm). = EDS spectrum conforming to laboratory Ambiguous idenUficaUon criteria observed. AMPHIBOLES Fs Sir<le Fiber (1-3 intenecUcne s 1-3 fibers) Amosite B= Bundle (>3 fibers <1 fiber diameter apart) zamm nitar Crocidolite Non-asbestos Cs Ckster {>3 intersections) —J Stoppinf Rulei: L_.- Us Matrix Anthophyllite NSD= Mo Structurei Detected >50 ■/G.O. or in 1ft 4 G.O. Tremolite Actinolite Non-Identified L:\BATA\PRtVJkT2\MlKBC\ CXDD'^BUa

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