NYC-WTC_000202564

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYG BOE Volume (liters): 1936 Lab Group #: 8719 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 4 Grid Opening Size: 0.01124 , Client Sample #: 04 Area Examined: 0,04496 mm- GRID BOX: Magnification: 20,000 I GRID ID: # Grid Openings: 4 Mt Accelerating Voltage: Analysis Date: too KeV 8/20/02

Analysis Performed By: ROMAN PEYSAKHOV

00^ I Stricture Structure Type Length ID of Structure N or N ■ EDS “■■■■■' No ' - (Nonadb F B C M >=05 p p=5|j Chrys Amphibole Nonasb [ Ambig/NO Elements) I ■ -No Coord <5(J.

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Struct-=>0.5,J >54 Aspect Rado Grid acceptance:

'A Positive diffraction pattern properties conforming to <50% uridissoived filter, overlapped or talced Totals <10% particulate coverage >50% coverage ate laboratory identification criteria cbserved teas: 2C unfolded or overlapped grid squares <5% ' F bTc M >5|j /= EDS spectrum conforming to Isboramru holes or opaque areas identification criteria obsemed ■ Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = 3uiidle (<3 fibers <l fiber diameter apart Crocidolite Ambiguous C - Cluster l>3 intersections! Anthophyllite Non-Asbestos Tremolite Al = Matrix Actinolite Non-Identified NSD = No Structures Detected

CIT Y_2 IMC10 ’o_o 0 3 2 73 49 F’

NYC-WTC_000202564