NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6398 Filter Type / Filter Area: MCE 385 mm"
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: 03 Area Examined: 0.04496 mm"
GRID BOX: Magnification: 20,000
GRID ID: Acceleratiim Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/22/02
Analysis Performed By:
MARK PHYSAKHOV
GO. Structure Structure Type Length ID of Structure N or ■/ EDS
No . F B C M 7=05^ )>=5p Chrys Amphibole Nonasb
No Coord <5p , Elements)
Struct = >0.5p > 5:5 Aspect Ratio Grid Fcceoaroe:
A- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <'0% particulaie coverage >50% coverage ate
least 20, unfolded or overlapped grid squares <5% F B C M >5lJ
EDS spectrum conforming b laboratory holes or opaque areas
iden'ification criteria observed Chrysotile
i 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
Actinolite
NSC = No Structures Detected
CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21 MC100_014660191
NYC-WTC_000174762
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