NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1808
Lab Group #: 7987 Filter Type / Filter Area: MCE 385 mm=
Lab Sample#: 18 Grid Opening Size: 0.01124
Client Sample #; 21 Area Examined; 0.04496
GRID BOX; Magnification: 20,000
GRIDffi: Accelerating Voltage: 100 KeV
# Grid Openings; 4 Analysis Date: 6/6/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or v EDS
No (Nonadb
F B C M >=05 (J >=5p Chrys Ampfl Nonasb AmbigMD
No Coord <5p Elements)
Struct = > O.Jp ,>5:1 Aspect Ratio Grid acceptance:
7= Positive aiffracdon pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identificatton crfteria observed <10% paiticulats 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 Amphibole
F = Single Fiber Amosite
B = Bundle (<3 libera <1 liber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Actinolite Non-Identified
NSC = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003456520
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178989
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