TEM analysis lab report for sample 61043, Oct 12 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAB GROUP #: 5676 - 1Q/I3/01 Lab Sample No, 6 1043 Filter Type MCE 25 mm Operator. Glienc. Spl. No. K3HE-yiy-10/12-05 Filter Arsa 385 min^z Instrument I.D. £14 0 CRX Grid I.D 750 Disk No Screen Magnification /-6,400X (GO) Area C.01 mm' Comments Acc. Voltage 8 0 kV No. GO co be .\naiyzed _4 3.147 scrucc. Corspd. to 70 s/mm"2.>

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

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^Photc No. (from 1 in 5 aBbeatoa- Identify ail etructurea uaing EPS Chee diffraction for aabestoa Store all unrepeated spectra containing aamplea) Grid acceptance:! structures up to TOs/An (l»t 4) <50X undiaaolvea filter, overlapped or folded Struct = > 0.5um & > 5:1 Aspect Ratio <tOX particulate coverage >50X coverage N= Not Observed (EDS ipectruni or diffraction pattern) at leaat 20 unfolded or overlapped grid aquarea Totals ^/ss PislLlve diffraction pattern properties conforming <SX holea or opaque areaa F B C M > Sum to laboratory identification criteria observed. JnUMd portion For chrysotiles 0.73nm seaclne far (020) reflecliona, of niur Chrysotile O.SOnm spacing for the layer line repeat, streaking Avoided portion of (HO) and (130) refleeUena of filler Fer amphiboles: O.OOnm layer line repeat, and approx. Portion of niter (2mm wide) 3.5 ratio of aen-tvinned layer line spot spaelng to ■ubjeet to ax*mia*Uon Amphibole la far Uns repeat dlalanca iO.GQnm). >/= Elis spectrum conforming to laboratory Ambiguous idintification criteria observed. AMPHIBOLES F= Single Fiber (1-3 InLereecUon* 1-3 fiben) Amosite B= Bundle (>3 flbera <l fiber diameter apart) Cs CluiLBr(>3 intaroecUona) ZSmm filler Crocidolite Non-asbestos Jstopptnc Rules*. L Anthophyllite M= M.trii NSDs No Structures Detected >90 a/G.O. or In lol 4 G.Q. Tremolite Actinolite Non-IdenLified :;4\data\privat8\mikic\caddvek3 9/Z2/80

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