TEM analysis lab report for sample 5629, Oct 7 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAP. GROUP #: 5629 - lO/07/Ol Lab Sample Nc. 60361 Client Spl. No. N3H5-1B?.-10/7-D? Filter Type MCE 25 mm Filter Area 365 nim^2 Operator Ln Instrument I.D. EM 10 CRX Grid I.D. Disk No. Scre.erj Macrnifioation i6,400X (GO) Area 0.01124 mm^2 Comments Acc. Voltage 6C kV No. GO to be Analyzed ._4 ( 3.147 Struct. Corspd. to 7C s/ntrR'^2.)

Length I.D. of Structure EDS GO. Structure Structure Type (Nonasb. No Coord. No. ^□.S um F B C M < 5 um 5uzn Chrys. Amphibole Nonasb. Ambig./ND Elements) / £2^ 6 X’2- (I

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Photo No. (from I in 5 aabestoa- Identify all atructurea ueing EDS5 I Check diffraction for aslibeatos Store all unrepeated spectra containinf sample*) Grid acceptance:! structures up to TOs/^i (nt 4) <S0X undisaolvea filter, overlapped or folded Struct. = > D.Sum fc > 5:1 Aspect Ratio <I0X particulate coverafe >50X eoverafe Totals Not Observed (EDS apectrum or diffraction pattern) at least 20 unfolded or overlapped grid squares <5% holea or opaque areas F B C M Sum Positive diffraction pattern properties conforming to laboratory identification criteria observed. •UnuMtt poruon For ehryeotilei 0.73nR) apBcing for (020) reflecUona. or niLor Chrysotile 0.53nm spacing for the layer line repeat, streaking Ivoidod portion of (110) and (130) reflection*. or ruler For amplihiboiea: O.aanm layer Une repeal, and approx. Portion of niter (2mm wide) 3.S raUe of non-lwinned lilayer Une apot epaclnc to ■ubjeet to axaminaUoB Amphibole layer Une repeat dialance (Q.&anm). v/= EDS ipcctrum conformint to laboratory Ambiguous identification criteria observed. AMPHIBOLES Fa Slnfle Fiber (1-3 interaecUona s 1-3 Hbera) Amosite Ba Bundle (>3 fiber* <1 fiber diameter apart) C= Cluater (>3 Intenectiona) ZSmm niter Crocidolite Non-asbesLos ------ 1 SUppInf Rule.: I--------- . Anthophyllite Ms Matrix NSDs No SlrucLurea Detected [ >90 >/C.O. or in l.l 4 C.O. 9/22/91 Tremolite Actinolite Non-Identified L\I1ATA\PWVATPsMIKBC\CADDVE«

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