NYC-WTC_000212433

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet € lient Name: NYC BOE Volume (liters): 1944 Lab Group #: 7398 Filter Type / Filter Area: MCE 385 Lab Sample#: I Grid Opening Size: 0.01124 Client Sample ii: 07 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor^ EDS (Nonadb No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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J Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: \ = Positive diffraction pattern proiserties conforming to <50% undissolved Alter, overlapped or folded Totals Ie boratory identiffcation criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M \ = EDS spectrum conforming to laboratory holes or opaque areas icentification criteria observed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite I Non-Asbestos Tremolite M = Matrix ' Actinolite Non-Identified hiSD = No Structures Detected

CITY_21MC100_0 02866529

NYC-WTC_000212433