NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6489 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 2 Grid Opening Size: 0.01124
Client Sample #: 02 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/28/02
Analysis Performed By:
MARKPEYSAKHOV
GO. Structure Structure type Length ID of Structure NorN EDS
No (Nonadb
F B C M >=05 M :>=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
a-
Struct = > 0.51J. ,> 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
•'/= EDS spectrum 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 Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467588
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180820
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