NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6619 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 8 GridOneninoSi^ 0.01124
Client Sample #: 08 Area Examined: 0.04496 mm=
GRID BOX: Magnification: 20,000
GRID ID: /C2C Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/10/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS I
No (Nonadb I
F B C M >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord Elements) |
<5u
/C ZZ2S A7W
4,
if
X t/ kz. z<
I
Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance;
Positive diffraction pattern properties conforming to <50% undissolved 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 >5u
EDS spectrum conforming Io 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
NSD = No Structures Detected
Actinolite
L
CONFIDENTIAL, CITY_21MC100_003467840
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_OO0180999
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