NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 5868 Filter Type / Filter Area: MCE 385
Lab Sample #: 2 Grid Opening Size: 0.01124
Client Sample #: 2 Area Examined: 0.04496 mm’
GRID BOX: Magnification: 20,000
GRID ID: xt— Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 11/10/01
Analysis Performed By:
MARKPEYSAKHOV
GO. Structure Structure Type Length ID Of Structure N or < EDS
(Nanadb
No F B C >=05 M Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
5^
i------ 1
Struct = > 0.5p _> 5:) Aspect Ratio Grid acceptance:
'1- Positive diffraction pattern properties confomiing to 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
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES i 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_003459090
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179388
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