NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1928
Lab Group #: 7274 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 13 Grid Opening Size: 0.01124
Client Sample #: 13 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/30/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS
(Nonadb
No F B C M >=05 (J >=5m Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
z
If
Struct = > 0.5(1 >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern propertes conforming to undissolved filter, overtopped orfokJed Totals
laboratoty identification criteria observed
r b* Am <10% particulate coverage >50% coverage ate
7= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <S% F B c M >5|J
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 Detected
CONFIDENTIAL, CITY_21MC100_003467225
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180605
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