NYC-WTC_000203550

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 9089 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 15 Grid Opening Size: 001124 Client Sample #: 15 Area Examined: 0 04496 mm^

GRID BOX: aW' Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

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

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Photo No (from 1 in 5 asbestos containing samples) Grid acceptance Struct = > 0 5u .> 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals 'J= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overiapped gnd squares <5% F B C M >5p holes or opaque areas EDS spectrum conforming to laboratory Chrysotile identification cnteria observed AMPHIBOLES~~! Amphibole F = Single Fiber Amosite : B = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite I Ambiguous I Anthophyllite ) Non-Asbestos C = Cluster (>3 Intersections) Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_0 03058547

NYC-WTC_000203550