NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1968
Lab Group #: 6401 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: Area Examined: 0.04496 rmn-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 1/22/02
Analysis Performed By:
MARK PEYSAKHOV
GO, Structure Structure T ype Length ID of Structure Norv EDS ■
No (Nonadb j
F B C M >=05 p Chrys Amphibole Nonasb Amb,g/ND
No Coord <5p Elements) i
-3
— <r--
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
4= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria obsenzed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5u
V= 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) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Delected L ..
CONFIDENTIAL, CITY_21MC100_003467440
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180725
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