NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 5986 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 8 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 11/29/01
Analysis Performed By:
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure Nor n/ EDS
(Nonadb
No F 8 C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance;
N= Positive diffraction pattern properties conforming to <50% undissoived 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 >5u
7= EDS spectrum conforming to laboratory holes or opaque areas
identification critena observed Chrysotile i
[ AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthopnyiiite Non-Asbestos
T remolite
M = Matrix Non-Identified
Actinolite
NS J = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003458501
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179235
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