NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1944
Lab Group #: 7247 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 6 Grid Opening Size: 0.01124
Client Sample #: 06 Area Examined: 0.04496 mm*
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/28/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID ofStructure Nory EDS
(Nonadb
No F B C M >=05 u >=5pj Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
y = EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
fTb c M >5p
identification criteria observed Chrysotile
I AMPHIBOLES Amphibole
F = Single Fiber Amosite
S = Bundle (<3 fibers <1 fiber diameter apart i Crocidolite j Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite ;
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468792
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181683
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