TEM analysis data sheet, NYC BOE site, Oct 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP 5~46 - lQ/23.-'Ol

Lab Sample Me. 62C6& Filter Type MCF 25 mm

Client Dpi. No Filter Are?. 2 85 mm'

Instrument I.D. EM 10 CRX Grid I.D. Disk No.

.Screen Magn-f icat -cn . 6 4 0OX I, GO) Area C.01124 mm^2 Commsnos

Aco. VoDcage 80 kV No. GO co be Analyzed _4 3.14'7 Struct. Cor3Dd. to 70 s/miT"2. )

Length I.D. of Structure EDS 10.Structure Structure Type (Nonasb. No Coord. No. ^0.5 um F B C M < 5 um 5um Chrys. Amphibole Nonasb. Ambig./ND Elements) /

3 ■3^

i i i ______ I___ ' I “PhoLo No. (from 1 in 5 Hshestoa- Identify all atructurea uaing EDS Check diffraction for asbestos Store all unrepeated apectra containing samples) Grid acceptance; I structures up to TOs/^m (l.t 4) <50X undiaaolvea filler, overlapped or folded Struct. = > 0.5um > 3:1 Aspect Ratio <10X particulate coverage >50X coverage Totals N= Not Observed (EDS spectrum or diffraction pattern) at least 20 unfolded or overlapped grid squares <5X holes or opaque areas F B C M > Sum Positive diffraction pattern properties conforming to laboratory identification criteria observed. •Unused portion Por chryaoUlt: 0.73nm •peong for (020) reflections, Of niter Chrysotile O.&Onm spacing for the layer line repeat, streaking •Avoided portion of (110) and (130) refleclions. of niter For amphiboles: O.Mnm layer line repeat, and approx. Portion of filter (2min vlde) 3.9 ratio of non-twinned layer line spot spacing to lubjecl to examination Amphibole layer Une repeat dialancr (Q.53nm). EDS spectrum conforming to laboratory Ambiguous identification criteria observed. AMPHIBOLES Fs Single Fiber (1-3 intersections = 1-0 fibers) Amosile 8= Bundle (>3 fibers <1 fiber diameter apart) £«“»«• I” 29mm filter ^—Taioppln, Rul„, ------ Crocidolite Non-asbestos Anthophyllite NSD= .No Slrucluro. Dotoclod ”■ *“ 4 =.O. Tremolite Actinolite Non-Identified L;\IiATA\PRIVATE\M!KEG\CADDVEX3 9/22/98

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