NYC-WTC_000202627

NYC 9/11 Public Portal Document

ATC ASSOCIATES. INC. TEM ANALYSIS LAE CROUP (1: 5659 - 10/99/01 Lab Sample No 6 0696 Ooe rat: or I Filter Type MCE 2 5 Ttm Client Spl. Me MBKS-3>6-10/?-04 fiicsr Area 38s Instrumen- I.D. EM IC CRX Grid -.D. Disk No Screen YacnifLcation L6.4O0X IGO) Arsa 9.01124 rnm'‘2 Comments Voltage 3 0 <V No. GC to be Anaiy2sd _4 3.147 S-xuee. Carsod 3-' inrn'

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

Photo No. (from 1 tn 3 aabeatoa- Identify alt atructurea uaing SDS Check diffraction for aebeatoa tore all unrepeated spectra t containing aamplea) Grid acceptance: I atructurea up to 7Qa/Ai <9056 undlaaolveo filter.^ overlapped or folded Struct. = > O.dum k > 5:1 Aspect Ratio <IOX particulate coverage >3056 coverage Totals, Ns Net Obaerved (BOS apeetrum or diffraction pattern): at leaat 20 unfolded or overlapped grid squares ,/a Poaitlve diffraction pattern prepartiee conforming ' areas F B C M > Sum to laboratory Identlficatian criteria obaervad. 'UBuaed portion Fer ebryaoUla: 0.?3nm apaeing for (020) ranecUona, of niter Chrysotile O.aSnra spacing for Iha layar Una repeat, atreaktng ‘Avoided porUon of (110) and (130) raflaeUona. of niter Far amphiboiaa: O.aSBin layer Una repeat, and apprag. ParUm af flltir (amm wide] 3.S raUe of nen-twinned layer Una spot apaaiag to <M(ninBUon Amphibole layer line rapaat dlatanea (O.Sann). EDS apeetrum conforming to laboratory tdentlficatlon criteria obaerved. AMPHIBOLES Ambiguous Single Fiber (1-3 Intervectlona = 1-3 fibera) Amosite Ba Bundle (>3 fibers <1 fiber diameter apart) C= CluaUr(>3 intenecUona) zamm niUr Crocidolite Non-asbestoa ------- i Stopping SuleK I--------- , Anthophyllite Ms Matrix NSOs No SUucturei Oataeted L:\DATA\PUVATB\ MIXSG\CaDD'7EMa t >50 s/G.a. or in tat 4 5.0. I

9/az/w Tremolite Actinolite Non-Identified

CITY_21MC100_003274222

NYC-WTC_000202628