NYC-WTC_000221525

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client .Name: NYC BOE Volume (liters): 1800 Lab Group #: 7291 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 16 Grid Opening Size: 0.01124

Client Sample #: 16 Area Examined: 0.04496 rnm-

GRID BOX: Magnification; 20,000 GRID ID: TSI Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 4/1/02 '------------------------------------------- — Analysis Performed By: /vZ ROMAN PEYSAKHOV

GO. Structure Structure Type ! Length ID of Structure \ or EDS / No (Nonadb F B C >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elemenis)

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Struct = > O.du > 5:1 .Aspect Ratio Grid acceptance: = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals taboratcry iaentification criteria observec <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% r ; F ; B I C ! M ; >5u EDS spectrum conforming to 'aooratory holes or opaque areas identification criieria obser^red Chrysotile I 1 [ F = Single Fiber .AMPHIBOLES Amosite Amphibole 1 T i B : Bunale i<3 fibers <1 fioer diameter apart Crocidolite Ambieuous : i 1 C = Cluster (>3 intersections; Anthophyllite Non-.Asbesios i Tremolite M = Matrix Non-Identificd j Actinolite NSD = No Structures Delected

CITY_21MC100_002888316

NYC-WTC_000221525