NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: WC BOE Volume (liters): 1856
Lab Group #: 6453 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 14 Grid Opening Size: 0.01124
Client Sample #: 14 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/26/02
Analysis Performed By:
MARK PEYSAKHOV
GO. ! Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F i B C M >=05 p >=5|J Chrys Amphibole Nonasb Ambig/NO
No Coord <6p . Elements)
Struct = > 0.5p >5:1 Aspect Ratio- Grid acceptance:
V= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5u
v/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsen/ed Chiysotile
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
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467620
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180843
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