NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 8147 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: It Grid Opening Size: 0,01124
Client Sample #: 11 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 6/17/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nory EDS
(Nonadb
No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND
<5p Elements)
.ZZ riV r.Z-
4
z
/r=
Struct = >0.5p >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 overtapped grid squares <5% F B C M >5m
m'= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES ' Amphibole
F = Single Fiber Amosite I
0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
M = Matrix Tremolite i
Actinolite i Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003387894
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229765
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