NYC-WTC_000201227

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1840 Lab Group #: 7291 Filter Type / Filter Area: MCE 385 mm- i Lab SaiTr[)h^ 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.04496 mm’

GRID BOX: Magnificati^ 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/1,'02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length - ID of structure Nor V EDS (Nonadb No. ■ F B e M .>=05 u >=5p Chrys Amphiboie Nonasb Ambig'ND Elements) N0 Coord <5|j ■

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Struc: = >0.5u >5:1 AspectRatio Grid acceptance: 4= Positive diffraction pattern, properties 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 4= EDS spectrum conforming to laboratory holes or opaque areas - identification criteria observed . Chrysotile AMPHIBOLES ) Amphibole F = Single Fiber ■Amosite B = Bundle ;<3 fibers <1 fiber diarrioter apart Crocidolite I Ambiguous C = Cluster (>3 Intersections) Anthophyllite j Noa-Asbestos Tremolite :/ = Matrix Non-Identified Actinolite I NSD = No Structures Detected

CITY_21MC100_011275493

NYC-WTC_000201232