NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7431 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: too KeV
# Grid Openings: 4 Analysis Date: 4/16/02
Analysis Performed By:
MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or EDS
No (Nonadb
F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND
Elements)
No Coord <5p
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
y= Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
7= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B c M i >5u
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber
B = Bundle (<3 fibers <1 ‘iber diameter apart
Amosite
Crocidolite Ambiguous
_1
i 1
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = Me Structures Detected
CONFIDENTIAL, CITY_21MC100_003471085
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176935
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