NYC-WTC_000201325

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7354 Filter Type / Eilter Area: MGE 385 r- Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #; 02 Area Examined: 0.04496 nm" GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: TOO KeV # Grid Openings: 4 Analysis Date: 4/8/02

Analysis Performed By; MARKPEYSAKHOV

' GO. Structure Structure Type . Length DofSiructure N or N EDS No (Nonadb r B C M >=Q5 p :>=5p Chrys • Amphibole Nonasb Ambig/NO Elements) No Coord <5p

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Struct = > 0.5u > 5:1 Aspect Rat:o Grid acceptance: ■V= Positive diffraction pattern properties conforming to <50% urdissolved filter, overlapped or folded Totals laboratory identification criteria obseived <10% particulate coverage >50% coverage ate - least 20 unfolded or overlapped crio squares <5% F B I C M >5p N= EDS spectrum conforming to laboratory doles or opaque areas identification critena observed Chrysotile ! AMPHIBOLES Amphibole F = Single Fiber ) ' Amosite S = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos ) Tremolite M = Matrix I Actinolite Nan-Identified NSD = No Structures Detected

CITY_21MC1OO_O11275621

NYC-WTC_000201326