NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 7247 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 2 Grid Opening Size: 0.01124
Client Sample #: 02 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/28/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ©"ofstructure N or EDS
(Nonadb
No F B C M >=05 M >=5)5 Chrys Amphibole Nonasb Ambig/ND
No Coord Elements)
<5u
Struct = > 0.5g > 5:1 Aspect Ratio Gnd acceptance:
7= 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 gnd squares <5% F B C M >5iJ
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES ' Amphibole
F = Single Fiber Amosite '
E = 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_21MC1OO_OO3468788
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181679
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