NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7325 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 08 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/4/02
Analysis Performed By:
MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure NorV EDS
No >=05 p :>=5m Amphibole Nonasb Ambig/ND
(Nonadb
F B C M Chrys
Elements)
No Coord <5|J
3
Struct = > 0-5g >5:1 Aspect Ratio Grid acceptance:
7= 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% fTb C M >5|J
v'=: 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 Actinolite Non-Identified
MSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470826
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176761
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