NYC 9/11 Public Portal Document
TEM Asbestos fair) Count Sheet
Client Name: NYC BOE Volume (liters): 1944
Lab Group #: 7136 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 9 Grid Opening Size: 0.01124
Client Sample #:: 9 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/19/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Stnjcture N or 7 EOS
No (Nonadb
F B C M >=05 p :>=5iJ Chrys Amphibole Nonasb Ambig/ND
No' Coord <5p Elements)
r
I---- h
Struct = > 0.5(1 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to ud«ssolved niter, 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 to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003388573
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229987
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