NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1928
Lab Group #: 7274 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 17 Grid Opening Size: 0.01124
Client Sample #: 17 Area Examined: 0.04496 mm’
GRID BOX:
GRID ID: '
w Magnification:
Accelerating Voltage:
20,000
100 KeV
# Grid Openings: 4 Analysis Date: 3/30/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EOS
No (Nonadb
F B C M >=05 p >=5)J Chrys Amphibole Nonasb Ambig/ND
Coord <5p Etements)
u
Si
Struct = > 0.5n > 5:1 Aspect Ratio Grid acceptance:
V= Positive diffraction pattern properties conforming to <50% undissolved filter, overiapped or folded Totals
laboratory identification criteria observed < 10% particulate coverage >50% coverage ate
■/= EDS spectrum confomiing to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B c M >5m
identification criteria observed Chrysotile
r 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 Non-Identified
Actinolite
NSO = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467229
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180608
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