NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1880
Lab Group #: 7105 Filter Type / Filter Area: MCE 385 mm"
Lab Sample #: 7 Grid Opening Size: 0.01124
Client Sample #: 07 Area Examined: 0.04496 mm"
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/16/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or V EDS
No (Nonadb
F B C M >=05 g :>=5p Chrys Amphibole Nonasb Ambig/ND
No i ' Coord <5|j Elements)
Struct = > 0,5g > 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F BTC M >5u
'J- EDS spectrum conforming to laboratory 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 Actinolite Non-Identified
NSD = No Strxtures Detected
CONFIDENTIAL, CITY_21MC100_003470364
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176460
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