NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6787 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 13 Grid Opening Size: 0.01124
Client Sample #: 13 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2,'23/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 9 EDS
(Nonadb
No F B C M >=05 M >=5pj Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
. 3 A'P
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
V= PosiSve diffraction pattern properties conforming to undissolved filter, overtapped or folded Totals
laboratory identification criteria observed *:10% particulate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B C ! M >5p
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) i Anthophyllite Non-Asbestos
I Tremolite
M = Matrix Non-Identified
I Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468109
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181189
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