NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7521 Filter Type / Filter .Area: MCE 385 mm’
Lab Sample #: 3 Grid Opening Size: 0.01124
Client Sample #: 03 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRIDID: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 4/24/02
Analysis Performed By: V/
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or v' EDS !
No (Nonadb
F B C M >=05 p r~ •=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5(1 Elements)
If
__
! I
Struct - > 0.5(1 >5:1 Aspect Ratio Grid acceptance:
\ = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Tot^
laboratory- identification criteria observed <10% paniculate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B ) C I M i >5p
v= EDS spectrum conforming to laboratcn/ holes or opaque areas
identification criteria observed Chrysotile i
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle ,<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 1
C = Cluster 03 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Delected
CONFIDENTIAL, CITY_21MC100_0 03471259
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177058
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