NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6687 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 1 Area Examined: 0.04496 mm^
GRID BOX: Magnification; 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/15/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or EDS
No (Nonadb
F B C M >=05 M r~: •=5|J Chrys Amphibole - Nonasb Ambig/ND
Elements)
5'/^' No Coord <5p
_n_ _
0
<7
Struct = > 0.5n _> 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 B C M >5iJ
'I- EDS spectrum conforming to laboratory ' holes or opaque areas
. identification criteria observed Chrysotile
^AMPHIBOLES i Amphibole
F = Single Fiber Amosite
6 = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003389091
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230338
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