NYC-WTC_000223639

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lah Group #: 7272 Filter Type / Filter Area: MCE 385 inm- Lab Sample #: I Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/30/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V ! EDS I No (Nonadb i F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambigi'ND No Coord <5m Elements) j // I

z pg.. II__ Ji— ________

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern propertes conforming to <50% undissolved filter, overlapped or folded Totals laboratoiy identification criteria observed <10% particulate coverage >50% coverage ate

v= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas i F ' B c M >5o identification cntena observed Chrysotile amphiboLes Amphibole । F = Single Fiber Amosite 8 = Bunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ! ] C = Cluster I >3 Intersections] Anthophyllite Non-Asbestos T remolite M = Matrix NSC = No Structures Detected Actinolite Non-Identified o CITY_21MC100_002919613

NYC-WTC_000223639