NYC 9/11 Public Portal Document
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TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1840
Lab Group #: 7291 Filter Type / Filter Area: MCE 385 mm’
Lab Sample #: 4 Grid Opening Size: 0 01124
Client sample #: 04 Area E.xamined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 4/1/02
.Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorV EDS
No (Nonadb
F B C M >=05 u Chrys Amphibols Nonasb Ambig/ND
No ^Coord <5u Elements)
1/
fl
II
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
v = EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5% F p ' B : C ' M I >5u
holes or opaque areas
identification criteria observed ; Chrysotile :
AMPHIBOLES .Amphibole
E = Single Fiber Amosite
8 = Bundle <3 ‘ibers •' liber piameterapan Crocidolite Ambiguous I
C = Cluster .>3 intersections! Anthophyllite : Non-.Asbestos :
M = Matrix
Tremolite
Actinolite ' Non-Identified j
NSD = No Strictures Selected
CONFIDENTIAL, CITY_21MC100_003470756
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176716
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