NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6798 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 5 Grid Opening Size: 0.01124
Client Sample #: 05 z Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/24/02
Analysis Performed By: I'J'
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 2 EDS 1
No (Nonadb |
F B C M >=05)3 >-5d Chrys Amphibole Nonasb AmbigfND
Elements) j
/'■----- r No Coord <5.
.2 A A SZ7
It
I
1
Struct = > 0.5p >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 I M >5|J
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 J
Tremolite
M = Matrix Non-Identified :
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468121
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181198
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