NYC-WTC_000202285

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: /NYCSOE77 Volume (liters): 1840 i Lab Grogp #: Filter Type / Filter Area: i MCE) 3 85 mnE Lab Sample #: 2 Grid Opening Size: 0.Q1124 Client Sample #: G2 Area Examined: ; 0.04496 mn? GRID BOX: Magnification 20,00© 7 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/28/02

Analysis Performed By: 7 MARKPEYSAKHGV

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

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Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance; V= Positive diffraction pattern properties conforming to undissolved filter, overlapped orfolded Totals • laboratoiy - ......... identification criteria observed <10% parUcuiate coverage >50% coverage ate ,

7= EDS spectrum Gonferming to laboratory least 20 unfolded or overlapped grid squares <5% F B C M >5p holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole / F = Single Fiber Amosite B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Nou-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011276321

NYC-WTC_000202285