NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters'): 1696
Lab Group #: 7386 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 03 .Area Examined: 0.0562 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 5 Analysis Date: 4/11/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure [ Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B C M >=05 u Chrys Amphibole Nonasb Ambig/NO
No Coord <5u Elements)
zzzz 3^
ss
0___
(I
Struct = > 0,5p > Srl Aspect Ratio Grid acceptance:
\'= Positive diffraction pattern prooerties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory 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 obsenred Chiysotile
AMPHIBOLES Amphibole
= Single Fiber Amosite
3 = Bundle (<5 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_009505384
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178881
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