NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 7247 Filter Type / Filter Area: MCE 385 mm=
Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 01 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 of Structure N or v EDS
(Nonadb
No F B C M >=05 u : '=51J Chrys Amphibole Nonasb Ambig/ND
No , Coord <5p Elements)
Struct = > 0.5p > 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
7= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Clirysotile
rAMPHIBOLES , Amphibole
F = Single Fiber Amosite !
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite '
Ambiguous
Anthophyllite Non-Asbestos
C = Cluster (>3 Intersections)
Tremolite
M = Matrix Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3468787
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181678
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