NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6718 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 08 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/18/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or n/ EDS
No >=05 u :>=5|j (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
' No Coord <5u Elements)
1
Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance;
Fosive diffraction pattern properties conforming to <50% undlssolved filter, overlapped orfolded Totals
laboratory,identification criteria observed < 10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5u
■7= EDS spectrurr, conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos'
Tremolite
M = Matrix Acdinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3433783
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175946
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