NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1944
Lab Group #: 6575 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample #: 4 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: 3 Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/6/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type - Length ID of Structure N or EDS 1
(Nonadb {
No F B C M >=05 p >=5(J Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
ci
Struct = > 0.5|j >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 oveifapped grid squares <5% F B C
n/= EDS spectrum conforming to laboratory M >5p
holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES Amphibole
F = Single Fiber I Amosite
e = Bundle (<3 fibers <1 fiber diameter apart i Crocidolite Ambiguous
i Anthophyllite !
C = Cluster (>3 Intersections)
I Tremolite [
Non-Asbestos,
M = Matrix Non-Identified
Actinolite i
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3388978
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230248
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