NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
ClientNEun^ NYC BOE Volume (liters): 1920
Lab Group #: 6910 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: Grid Opening Size: 0.01124
Client Sample #: 05 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID IP: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 3/3/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or V EDS i
No >=05 u (Nonadb 1
F B C M >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5u Elements)
A A-A.- ■
Struct = > 0.5(1 > 5:! A,spect Ratio Grid acceptance:
9= Positive diffraction pattern properties conforming to <50% undisscived filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
9= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B C M j >5u
identification criteria observed Chrysotile
AMPHIBOLES
i
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-ldentified
Actinolite I !
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3468281
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT, 2008
NYC-WTC_000181293
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