NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 7347 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 16 Grid Opening Size: 0.01124
Client Sample #: 16 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/6/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS :
(Nonadb j
No F B C M >=05 M : =5tJ Chrys Amphibole Nonasb Ambig/ND Elements) |
No Coord <5p
■ J -0;='
Struct = > 0.5(u >5:1 Aspect Ratio Grid acceptance:
7 = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
7= EDS spectrum conforming to laboratory
least 20 unfolded or overiapped grid squares <5%
holes or opaque areas
F B c M >5u
identification criteria observed Chrysotile
.AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber d ameter apart Crocidolite Ambiguous
C = Cluster i>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470878
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176799
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