NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: WC BOE Volume (liters): 1890
Lab Group #: 6021 Filter Tvpe / Filter Area: MCE 385 mm*
Lab Sample #: !7 Grid Opening Size: 0.01124
Client Sample #: 17 Area Examined: 0.04496 mm-
GRID BOX: AV ,, Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 12/3/01
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 7 EDS
(Nonadb i
No F B ■c M >=05 p >=5^1 Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements) [
C(
6
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
<= Positive diffraction pattern properties conforming to ^50% undissolved filter, overiapped or folded Totals
laboratory identification criteria observed :10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B >5u
EDS spectrum conforrtiing 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) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified 1
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467367
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180685
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