NYC 9/11 Public Portal Document
TEM Asbestos fair) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6673 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 11 Grid Opening Size: 0.01124
Client Sample #: 11 Area Examined: 0.04496 mm-
GRID BOX: Magnillcation: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/14/02
Analysis Performed By:
MARK PEYSAKHOV
. GO, Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > 0.5g ..> 5:1 Aspect Ratio Grid acceptance:
Positive diffracdon pattern propertes conforming to "50% undissolved filter, overiappfed 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
t/= 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 Non-Asbestos
Tremolite
M = Matrix Non-ldentified
Actinolite
N3D = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003389072
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230327
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