NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 6343 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 11 Grid Opening Size: 0.01124
Client Sample #: 11 Area Examined: 0.04496
GRID BOX: Magnification: -20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/16/02
jSL
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 'Z EDS,
No (Nonadb
F B C M >=05 p :>=5lJ Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > 0.5n .> 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
least 20 unfolded or overlapped grid squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed . Chrysotile
i 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 Non-Identified
Actinolite
NSD = No Structures Detected
CITY_2IMCl0 0_0 0 0 623055
NYC-WTC_000226150
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