NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 6416 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 15 Grid Opening Size: 0.01124
Client Sample #: 15 Area Examined: 0.04496
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/24/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or v EDS
(Nonadb
No F B C M >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
iS
/f
J
1
Struct = >0.5u >5:1 Asoect Ratio Grid acceptance:
V= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5u
■/= 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 Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003433549
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175829
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