NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1899
Lab Group #: 6009 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 12 Grid Opening Size: 0 01124
Client Sample #: 12 •Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRIDED: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 12/1/01
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure T ype Length ID of Structure N or V EDS
(Nonadb
No F B M >=05 p >=5tJ Chrys Amphibole Nonasb Ambig/ND
Elements)
No Coord <Sp
J
Struct = > 0.5p .>5:1 Aspect Ratio Grid acceptance:
^= Positive diffraction pattern properiies conforming to <50% undissoived filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identificabon criteria obsen/ed
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
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_003467314
SUBJECT TO PROTECTIVE ORDER NO• 2, SEPT• 2008
NYC-WTC_000180642
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