NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 6801 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 12 Grid Opening Size: 0.01124
Client Sample #: 12 Area Examined: 0.04496
GRID BOX: Magnification: 20,000 ;
GRID IDT Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/24/02
Analysis Performed By: /xZ
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or V EDS
No >=05 p ;>=5p (Nonadb
F B C M Chrys Amphibole- Nonasb Ambig/ND
■ No Coord <5p ■ Elements)
■#
4
>
.;«■
Struct = > 0.5p .> 5:1 Aspect Ratio Grid acceptance:
= Positive diffraction pattern properties conforming to <50% undissoh/ed 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
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
' AMPHIBOLES i Amphibole
F = Single Fiber Amosite
8 = Bundle (<3 fibers <1 fiber diameter apart ’ Crocidolite Ambiguous
C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos
T remolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003389160
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230373
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