NYC-WTC_000200545

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8138 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 7 GndODeningSi^ 0.01124

1 Client Sample #: 07/^ Area Examined: 0,04496 mm^

/ GRID BOX: Magnification: 20,000 1 GRID ID : Accelerating Voltage: 100 KeV i # Grid Openings: 4 Analysis Date: 6/17/02

Analysis Performed By: MARK PEYSAKHOV

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

Struct = >0.5p >5:1 Aspect Ratio> Grid acceptance: yl= Positive diffraction pattern properties conforming to “hdissoved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

G EDS spectrum conforming to laboratoy least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M I >5p identification criteria observed Chrysotile " amphiboles “r Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart i Crocidolite Ambiguous C = Cluster (>3 Inrersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified MSD = No Structures Detected

CITY_21MC100_011274989

NYC-WTC_000200551