NYC 9/11 Public Portal Document
I TEM Asbestos (air) Count Sheet
I Client Name:
Lab Group #:
Airtek
6120
Volume (liters):
Filter Type / Filter Area:
1300
MCE 385 mm2
Lab Sample #: 20 Grid Opening Size: 0.01124
I Client Sample #: 35 Area Examined: 0.06744 mm=
GRID BOX: L. (S Magnification:
20,000
1 GRID ID:
# Grid Openings: 6
3C' '' Accelerating Voltage: 100 KeV
Analysis Date: 12/16/01
I Analysis Performed By:
ROMAN PEYSAKHOV
I GO. Structure
No
Structure Type
F B C M >=05 N
<5N
Length
>=5p Chrys
ID of Structure
Amphibole
Nor J
Nonasb AmbigiND
EDS
(Nonadb
Elements)
No Coord
!
/
l
I
I
I
I
t
I
Li Struct => 0.511 > 5:1 Aspect Ratio Grid acceptance:
'I= Positive diffraction pattern properties conforming to <10% undissolved
<50% filter, overlapped or folded
particulate coverage '50% coverage ate
Totals
laboratory identification criteria observed
I 4= EDS spectrum conforming to laboratory
identification criteria observed
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
AMPHIBOLES
Chrysotile
Amphibole
F B C M >5N
F = Single Fiber
I B = Bundle (<3 fibers <1 fiber diameter apart
C = Cluster (>3 Intersections)
Amosite
Crocidolite
Anthophyllite
Tremolite
Ambiguous
Non-Asbestos
M = Matrix Actinolite Non-Identified
I NSD = No Structures Detected
NYC-WTC 000098503
OCR can misread numbers and units. Confirm readings against the page image before using them.