NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1872
Lab Group #: 6462 Filter Type / Filter .Area: MCE 385 mm-
Lab Sample #: Grid Opening Size: 0.01124
Client Sample #: 12 .Area Examined: 0.04496 mm-
GRID BOX. Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/27/02
Analysis Performed By: ,gp
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or N EDS
No (Nonadb
F B C M ■=05|j Chrys Amphibole Nonasb Ambig/ND
_ No Coord <5m Elements)
2
JL
it
Struct = > 0.5n > 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C
■i- EDS spectrum conforming to laboratory
M >5p
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 Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467558
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180806
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