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 mm^
Lab Sample #: 7 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: 4/27/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS
No (Nonadb
F B C M >=05 u )>=5(J Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > O.op > 5:1 Aspect Ratio Grid acceptance:
V- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laooratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped gnd squares <5%
EOS spectrum conforming to laboratory holes or opaque areas I F B C M
identification criteria observed r Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite I
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite
Anthophyllite
[I Ambiguous
C = Cluster (>3 Intersections) Non-Asbestos
M = Matrix Tremolite
Actinolite Non-identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_001902303
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178524
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