NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6884 Filter Type / Filter .Area: MCE 3S5 mm-
Lab Sample #: 11 GrkLQpening^i^ 0.01124
Client Sample #: 11 Area Examined: 0.04496 mnr
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/2/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or V EDS
(Nonadb
No F 3 C M >=05 p >=5tJ Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements) i
I
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
/= Positive diffraction pattern properties conforming to <50% undissalved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
1/= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5% F B I C M >5u
holes or opaque areas
identification criteria observed Cluysotile
AMPHIBOLES Amphibole
F = Single Fiber
B = Bundle (<3 fibers <1 fiber diameter apart
Amosite
Crocidolite
Anthophyllite
Ambiguous
Non-Asbestos
o
C = Cluster (>3 Intersections)
Tremolite
1 i
M = Matrix Non-Identifieii
NSD = No Structures Detected
Actinolite 1 i
CONFIDENTIAL, CITY_21MC100_003468247
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181272
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