NYC 9/11 Public Portal Document
I TEM Asbestos (air) Count Sheet
I Client Name:
Lab Group #:
ATC
6255
Volume (liters): 1360
Filter Type / Filter Area: DICE 335 mm-
Lab Sample #: ? Grid Opening Size: 0.01124
I Client Sample #: 3 Area Examined: 0.06744 mm=
GRID BOX: J z E' Magnification: 20.000
I GRID ID:
# Grid Openings: 6
Accelerating Voltage:
Analysis Date:
101) Key'
13/02
I Analysis Performed By:
MARK PEYSAKHOV
I GO. Structure
No
Structure Type
F B C M '=05 µ
Length
>=5p Chrys
ID of Structure
Amphibole Nonasb
N or d
AmbiglND
EDS
(Nonasb
No Coord <5N Elements)
17
I
I
I
I
l i I i
I I
I
I Struct = > U.5µ > 5' 1 Aspect Ratio
J= Positive diffraction pattern propertes conforming to
Grid acceptance:
<50% undissolved filter, overlapped orfoldea
laooratory ioennfcation criteria observea <10% particulate coverage >50% coverage ate
I v= EDS spectrum conforming to laboratory
dentfication criteria observed
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
Chrysotile
I F B C MI >5u
AMPHIBOLES Amphibole
P = Single Fiber I I
I S = Bundle 1<3 fibers <1 fiber diameter apart
C = Cluster (>3 Intersections)
Amosite
Crocidolite
Anthophyllite
Tremolite
Ambiguous
f Y
!
'
M = Matrix
Non-Identified
I NSD = No Structures Detected
Actinolite
NYC-WTC 000104495
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