NYC 9/11 Public Portal Document
TEM Asbestos fair) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7186 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 12 Grid Opening Size: 0.01124
Client Sample #: 12 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/24/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS
No >=05 p :>=5p (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
tf
7 4
5
—
Struct = > 0.5h .> 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to dndissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B C M >5p
■/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES i 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
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_0 03470525
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176564
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