NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1928
Lab Group #: 7216 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: 3 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20.000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3/26/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or x/ EDS
No (Nonadb
F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
Elements)
No Coord <5m
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to '^50% undissclved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped gnd squares <5% F B C M >5p
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
, AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
I Anthophyllite j
C = Cluster (>3 Intersections) Non-Asbestos
Tremolite
M = Matrix
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003388745
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230101
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