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 #: 7 Grid Opening Size: 0.01124
Client Sample #: 7 Area Examined: 0.04496 mm^
GRID BOX: 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 N or -7 EDS
(Nonadb
No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
„ No Coord <5p Elements)
Struct = > 0.5u > 5:1 Aspect Ratio Grid acceptance:
’J = Positive diffraction pattern properties confomiing to *5*’^ 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 >5p
A- 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
C = Cluster (>3 Intersections) ' Anttiophyllite Non-Asbestos
M = Matrix ' T remolite
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003387890
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229761
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