NYC 9/11 Public Portal Document
I TEM. Asbest®s (air) Count Sheet
Client Name: Airtek Volume (liters): 1300
Li Lab Group #: 6115 Filter Type / Filter Area: MCE 385 mm'
17 Grid Opening Size: 0.01124
Lab Sample #:
Area Examined: 0.06744 mm2
Client Sample #: 27
Magnification: 20,000
GRID BOX: I
1 GRID ID:
# Grid Openings: 6
Accelerating Voltage: 100 KeV
Analysis Date: 12/15/01
fl Analysis Performed By:
MARK PEYSAKHOV
1 GO. f=No
F
ructure Type
B C M >=05 N
Length
>=5N Chrys
ID of Structure
Amphibole Nonasb
Nor
AmbigIND
EDS
(Nonadb
Elements}
No Coord <5N
I
I
I
Li
I
I
LI Struct => 0.5 µ -> 5:1 Aspect Ratio Grid acceptance:
<50% undissolved filter, overlapped or folded
d= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate
Totals
laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M >5u
I 4= EDS spectrum conforming to laboratory
identification criteria observed
holes or opaque areas
AMPHIBOLES
Chrysotile
Amphibole
F = Single Fiber Amosite
I B= Bundle (<3 fibers <1 fi
C = Cluster (>3 Intersections)
b er diameter apart Crocidolite
Anthophyllite
Tiemolite
Ambiguous
Non-Asbestos
M = Matrix Actinolite Non-Identified
I NSD = No Structures Detected
NYC-WTC 000098470
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