NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 7191 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 9 Grid Opening Size: 0.01124
Client Sample #: 09 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:
MARKPEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS
(Nonadb
No F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/MD
No Coord <5)j
Elements)
------- 3
Struct = > 0.5)1 .> 5:1 Aspect Ratio Grid acceptance:
x/= Positive diffraction pattern properties conforming to ^^0% undissolved filter, overlapped 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
AMPHIBOLES Amphibole
F = Single Fiber . Amosite ;
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite i Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite i
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468731
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181626
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