NYC 9/11 Public Portal Document
I 'ITEM Asbestos (air) Count Sheet
I Client Name:
Lab Group #:
Airtek
6120
Volume (liters): 1300
Filter Type / Filter Area: MCE 385 mm2
Lab Sample #: 11 Grid Opening Size: 0.01124
I Client Sample #: 21
( ( t/
Area Examined:
Magnification: 20,000
0.06744 mm2
GRID BOX:
I GRID ID:
# Grid Openings: 6
C /C/4 Accelerating Voltage: 100 KeV
Analysis Date: 12/16/01
I Analysis Performed By:
ROMAN PEYSAKHOV
I No
GO.
Coord
Structure
No
Structure Type
F B C N >=05 u
Length
>=51t Chrys
ID of Structure
Amphibole Nonasb
N or
Ambig/ND
EDS
(Nonadb
Elements)
<5v
z- L
L T 1(
bkZ If
I
I
I
I
I
1
I Struct = > 0.5µ .> 5:1 Aspect Ratio
4= Positive diffraction pattern properties conforming to
Grid acceptance:
<50% undissolved filter, overlapped or folded
<10% particulate coverage >50% coverage ate
Totals
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M I >Su
I i= EDS spectrum conforming to laboratory
identification criteria observed
holes or opaque areas
AMPHIBOLES
Chrysotile
Amphibole
F = Single Fiber Amosite
I 6 = Bundle (<3 fibers <1 fiber diameter apart
C = Cluster (>3 Intersections)
Crocidolite
Anthophyllite
Tremolite
Ambiguous
Non-Asbestos
M = Matrix Actinolite Non-identified
NSD = No Structures Detected
NYC-WTC 000098494
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