NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1944
Lab Group #: 6527 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: -3 Grid Opening Size: 0.01124
Client Sample #: Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/1/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or V EDS
(Nonadb
No F B C M >=05 p >=5(J Chrys Amphibole Nonasb Ambig/ND
■ No Coord <5p Elements)
>1
TV II
H
361 :-----
Struct = > O.Sp .> 5:1 Aspect Ratio Grid acceptance:
V= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory Identification criteria obsenred <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5u
>/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsenred 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 Detected
CONFIDENTIAL, CITY_21MC100_003388919
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230202
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