NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1800
Lab Group #: 7300 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: Mannification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/2/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
: No Coord <5u Elements)
A erg
-------k
! :
i :
Struct = > 0.5)1 >5:1 A.spect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals
laboratoty identification criteria observed <10% particulate coverage >50% coverage ate
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 I
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ' Ambiguous
C = Cluster (>3 Intersections) Anthophyllite ; Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470786
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176738
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