NYC-WTC_000218088

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6884 Filter Type / Filter Area: MCE 2i5 mr.T Lab Sample #: 7 Grid Opening Size: 0.0! 124

Client Sample #: 07 Area Examined: 0.04496 mm-

GRID BOX: .Magnification: 20,000 GRIP tP: <<*><<<- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/2/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No (NonadC F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elemer.tsi

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

EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas _____ 12 Chry'sotile B C M i >l identification criteria observed AMPHIBOLES •Amphibole F = Single Fiber Amosite Crocidolite Ambiguous I B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non-Asbesios j Tremolite M = Matrix Actinolite Non-ldentified , NSD = No Structures Detected

CITY_2IMCl0 0_0 0 0 4 6 5 8 7 0 NYC-WTC_000218088