NYC-WTC_000228748

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7625 Filter Type / Filter Area; MCE 385 Lab Sample #: 8 Grid Opening Size; 0.01124 Client Sample #: 10 Area Examined: 0.04496

GRID BOX: Magnification: 20 000 GRIDID; Accelerating Voltage: iOO KeV # Grid Openings; 4 Analysis Date: 5/4/02

Analysis Performed By: MARK PEYSAKHOV

GO. structure Structure Type Length ID of structure Norv EDS No (Nonabb F 8 C M >=05 p >=5tJ Chrys Amphfcoie Nonasb Ambig/ND Elements) No Coord *5u

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Struct ” > 0.5p > 5; I Aspect Ratio Grid accaptanee' Positive diffracSon pattern properties conforming to <50% urdissolved titer, m/eriapped or folded Totals labDratory identdicadcn criteria observed <10% particulate coverage >50% coverage ate

EDS spearum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas pF B C M >6u ioentilicaten criteria observed Chrysotile ■ amphiboles Amphibole F = Single Fiber Amosite 0 = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C : Cluster (>3 Intersections) Anthophyllite Non-Ashestos Tremoltts t4 = MBlrix Actiriotite Non-Identified NSO = NO Structures Detected

CITY_21MC100_002901617

NYC-WTC_000228748