NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6573 Filter Type / Filter .Area: MCE 385 mm-
Lab Sample #: 9 Grid Opening Size: 0.01124
Client Sample #: 9 Area Examined: 0.04496 miTi"
GRIP BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 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 7 EDS
No (Nonadb
F B M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elemenis)
o
p ^3
J i
! I
Struct = > 0.5(1 > 5:1 Aspect Ratio Gnd acceptance;
^= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
t/= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5% F B c M >5ui
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
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467756
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180939
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