NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 6928 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 0 Grid Opening Size: 0.01124
Client Sample #: 02 Area Examined: 0.04496 mm-
GRID BOX: Magnitlcation: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/4/02
Analysis Performed By:
- ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or N EDS I
(Nonadb I
No F B C M >=06 u Chrys Amphibole Nonasb Ambig/ND
No Coord <50 Elements) j
7
7^™
Struct = > 0.bp >5:1 .Aspect Ratio Grid acceptance:
\i= Positive diffraction pattern propel es conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% partculate coverage >50% coverage ate
v= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
MB c M I
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 Noil-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468298
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181304
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