NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1808
Lab Group #: 8278 Filter Type / Filter Area: MCE 385
Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 03 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID IP: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 6/25/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nory EDS
No (Nonadb
No Coord
F B C M >=05 p >=5m Chrys Amphibole Nonasb Ambig/ND
Elements)
<5p
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved litter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B c M >5m
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 Structures Detected
CONFIDENTIAL, CITY_21MC100_003461808
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179919
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