NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7540 Filter Type / Filter Area: MCE 385
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample #: 04 Area Examined: 0.04496 mm^
GRID BOX: Maenification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/27/02
Analysis Performed By:
MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure Norn) EDS
No (Nonadb
F B C M >=05 u =5P Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
O
Struct = > O.Sp >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5%
/= EDS spectrum conforming to laboratory holes or opaque areas I F B C >5U
identification criteria observed Chrysotile ]
AMPHIBOLES Amphibole |
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diame'.er apan Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_2IMCl0 0_0 019 0 2 3 0 5
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178526
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