NYC-WTC_000227705

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume fliters): 1920 Lab Group #: 7351 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 17 Grid Opening Size: 0.01124 Client Sample #: 19 Area Examined: 0.04496 mnr GRID BOX: Magnification: 20,000 GRIDID: 3 2a/tZ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: MICHAEL GORYCKI

GO, Structure Structure Type Length ID of Structure N or 4 EDS 44 No Coord No F 8 C M >=05IJ <5p Ctirys Amphibole Norasb Ambig/ND (Nonadb Elements)

a/W

fV------

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: Totals 4= Positive diffraction pattern properties conforming to <50% undissolued filter, overlapped or folded laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M 4= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile . AMPHIBOLES . Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Icientified Actinolite NSD = No Structures Detected

CITY_21MC100_002899210

NYC-WTC_000227705