NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 7122 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 6 Grid Opening Size: 0.01124
Client Sample #: 6 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/18/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nory EOS
i No >=05 M
(Nonadb
F B C M >=5(J Chrys Amphibole Nonasb Ambig/ND
Elements)
I- No' Coord <5p
-J—
Struct = > 0.5n _> 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 overiapped 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
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 Delected
CONFIDENTIAL, CITY_21MC100_003388541
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229962
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