NYC-WTC_000230518

NYC 9/11 Public Portal Document -U...

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 9133 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm* GRID BOX: Magnification: 20,000 GRID ID: 2^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 IDS i (Nonadb i No F B C M >=05 p >=5(0 Chrys Amphibole Nonasb Amtig/ND No Coord <5p Eieinenls) i

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i I I I ' > Photo No. itrom 1 in 5 asbestos conta ning samples) „ , Grid acceptance; struct = > O.Spi > 5:1 Aspect Ratio untlissolued filter, overlapped or ‘elded Totals 7 = Positive diffraction pattern properties conforming to <13% particulate coverage >60% coverage ate laboratory icentification criteria abserved least 20 unfoiaed or overlapoed grid squares <5% I F i B i C ' M 1 >5Li holes or opaque areas y = EDS spectrum conforming tc iaboratorr Chrysotile i Identification uritens obseraeo AMPHIBOLES Amphibole ■ F = -Single Fiber Amosite B = Bundle A3 fibers <1 fiber diameter apart Crocidolite Ambiguous i C = Cluster (>3 Intersections) Anthopnyliite I Non-Asbestos * Tremolite M = Matrix ! Non-Toentified Actinolite I MSD = Mo Structures Detected I.............................

CONFIDENTIAL, CITY_21MC100_011771457 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230518