NYC-WTC_000209771

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAB GROUP g 5670 - 10/12/01 Lab Sample No £0213 Filter Type MCE 25 mm Operator Client Spl No L-3 Filter Area 385 mm"2 Instrument I D EM 10 CRX Grid I D Disk No Screen Maqnification 16,400X (GO) Area 0 01124 mm*2 Comments Acc Voltage 80 kV No GO to be Analyzed 4 ( 3 147 Struct Corspd to 70 s/mm^2 )

GO. 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)

Photo No. (from 1 in S aaLaloa- Store all unrepeatod spectra—^ Idanlify all a^cturaa ualng BPS Chock diffraction for aabaatoa containing aamplea) Grid aecaDtaiice:l atructurea up to 70a/^n (l«l 4) <S0X undiaaolvaa rliior. overlapped or roldad Struct. = > O.Sum k > S:1 Aapect Ratio <IOX particulate coverage >3031 coverage Na Nat Obaerved (BDS apaetrum ar dlffracUon pattern) at iaaal 20 unfolded or overlapped grid squaraa Totals <SX holn or ooaque ■rota Pool lira diffraeUan paltam proparliaa canforminf F B C M > Sum to laboratory idaaUneaUan eriUria obaarrad. •f niur Por ahrraalllai «.73aai apaaiax far (OtO) ranactiaaa. O.BSam apaeinB for Iha UyarllBa rapaaU atraaking Chrysotile ar (110) aad (130) ranaatiaaa. ---------- perUM \ of niUr Par ampblbalaas 8.33001 layar liaa rapoat, aad approx. Periioa of niUr I (Emm vM«) 3.3 raUa aT aon-taiaaad hrar liaa apat apaciag la •ubjMi to Amphibole Uyar liaa rapaat aioUaco (OJUnm). IDS apaetrum aonfarming to laboratory Ambiguous IdanllfleatioB orilaria obaarrad. AMPHIBOLES Fa Simla Fthar (1-3 iBUraaeUona a 1-3 flbara) Amosite Ba Bundla (>3 (Ibara <1 Hbar diamatar apart) Ca Cluatar(>3 IntaraacUona) CSmm niUr Crocidolite Non-asbestos Ma Matrix Jsu Buloo; I . Anthophyllite NSDa No Struoluraa Oatastail >SO a/C.O. ar la lai 4 G.O. Tremolite Actinolite Non-Identified k\DATA\PHI¥AT«\Mme\CADirTtM3 t/M/M

CITY_21MC100_002842235

NYC-WTC_000209772