NYC-WTC_000228119

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1840 Lab Group #: 7045 Filte£Tyge/JllteLArea2 MCE 385 mm^ Lab Sample #: 14 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: 3/12/02

Analysis Performed By; MARK PEYSAKHOV

; GO. Structure Structure Type Length ID of Structure N or V EDS No >=05 u :>=5p Nonasb Ambig/ND (Nonadb F B C M Chrys Amphibole Elements) ; No i Coord <5p

BSE

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Struct = > 0.5|x .> 5; 1 Aspect Ratio Grid acceptance: Positive dilfraction pattern propetlies conforming to <50% 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 conforming to laboratory holes or opaque areas identification criteria obseived Chrysotile AMPHIBOLES Amphibole F = Single Filler Amosite B = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_006617613

NYC-WTC_000228119