NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 7017 Filter Type / Filter Area: MCE 385 mm*
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 08 Area Examined: 0.04496. mm*
GRID BOX: Maonification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/10/02
Analysis Performed By:
MARK PEYSAKHOV
_G0. Structure Structure Type Length ID of Structure Nor N EDS
(Nonadb
No F B C M >=05 M I' >=5lJ Chrys Amphibole Norasb Ambig/ND
No Coord <5p Elements)
/ex'
Struct = > 0.5 p .> 5:1 Aspect Ratio Grid acceptance:
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
V= 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 i Ambiguous
C = Cluster (>3 Intersections) Anthophyllite i Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468446
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181405
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