NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1816
Lab Group #: 8267 Filter Type / Filter Area: MCE 385
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample #: 06 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 6/24/02
Analysis Performed By: if
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS
(Nonadb
No F B C M >=05 M :>=5p Chrys Amphibole Nonasb Ambig/ND
No ^oord <5|J Elements)
1
/i
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to
<50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5m
•J- EDS spectrum confonning to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003461787
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179901
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