NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1928
Lab Group #: 7232 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 12 Grid Opening Size: 0.01124
Client Sample #: 12 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/27/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 'J EDS
(Nonadb
No F B C M >=05 M >=5u Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
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/
§
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
’/= Positive diffraction pattern preperties conforming to <50% undissolved filter, cveriapped 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
^1= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES ‘ Amphibole
F = Single Fiber Amosite i
B = Bundle (<3 fibers <1 fiber diameter apart : Crocidolite , Ambiguous
C = Cluster (>3 Intersections) Anthophyllite i Non-Asbestos
Tremolite :
M = Matrix Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_005803180
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181671
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