NYC-WTC_000207783

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: -NYC BOE VohnneJIitersl; 1818 Lab Group #: 7753 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 14 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/16/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or\ EDS No (Monadb F B C M >=05 p >=5iJ Chrys Amphibole Nonasb Ainbig/ND No Coord <S|J Elements)

Struct = > 0.5pi >5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conrorming to ^^0% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ' /= EDS spectrum confonriing to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle [<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003016511

NYC-WTC_000207794