NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 7092 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 13 Grid Opening Size: 0.01124
Client Sample #: 15 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/16/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
Struct = > 0.5u .> 5:1 Aspect Ratio Grid acceptance;
^= Positive diffraction pattern propertes conforming to "50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed ":10% particulate coverage >50% coverage ate
EDS spectrum conforming to laboratory
least 20 unfolded or overtapoed grid squares <5% F B C M >5m
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
T remolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468556
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181487
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