NYC 9/11 Public Portal Document
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TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 6575 Filter Type / Filter Area: MCE 3S5 mm-
Lab Sample #: 2 Grid Opening Size: 0.01124
Client Sample #: 2 Area Examined: 0.04496 mm^
GRID BOX:
J Magnification: 20,000
GRID ID: Acceleratin2 Volta2e: 100 KeV
# Grid Openings: 4 Analysis Date: 2/6/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure ' Structure Type Length ID of Structure N or / EDS
(Nonadb ■
No F B C M >=05 p =5|j Chrys Amphibole .Nonasb Ambig/ND
No Coord <5|J Elements)
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
Positive diffraction patterh properties conforming to <50% undissoNed filter, overfapped 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 >5p
>/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
j AMPHIBOLES i Amphibole
F = Single Fiber \ Amosite I
B = Bundle (<3 fibers <1 fiber diameter apart i Crocidolite , Ambiguous
C = Cluster (>3 Intersections) I Anthophyllite j Non-Asbestos
I Tremolite
M = Matrix Non-Identified
i Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003388976
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230246
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