NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 34 Grid Opening Size: 0.01124 Client Sample #: 34 Area Examined: 0.24728 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure Norv EDS No (Nonadb F B C M >=05 p :>=5(j Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5m

zczz 2222 17 V 'ys 0 ZE3Z /. It

7^/2 4 2: 7 E //- i M2 I f

2^^

z> J 1)4 fC Y____ i p:^ ‘7

G 2i 3 // 2^ //a

Photo No I'lrom 1 in 5 asbestos containing samoies) Grid acceptance: Struct O.Su 5.1 AspeCi Ratio <50% undissolved filter, overlapped or folded Totals v= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped grid squares <5% r F I B : C M I >5m v = EDS spectrum conforming io laboratory holes or opaque areas ---------- }----- 1------ i------ identification cntena observed i Chrysotile I I AMPHIBOLES ! Amphibole ~ = Single Fter Amosite 3 = Bundle f<3 fibers <1 fiber diameter apan Crocidolite Ambiguous C = Siuster .>3 interseciicns) Anthophyllite I Non-Asbestos Tremolite i ! M = Matrix Actinolite I Non-Identified ’ NSC = No Structures Detected . J

CITY_21MC100_003069345

NYC-WTC_000202880