NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1899
Lab Group #: 6021 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample - : 04 Area Examined: 0.04496 mm-
GRID BOX: iXL Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 12/3/01
Analysis Performed Bv:
ROMAN PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or N EDS
(Nonadb
No F B C M •=05p >=5)j Chrys Amphibole Nonasb t Ambig/ND
No Coord <5u Elements)
if
---------------
' I -
Struct = > O.bp .> 5; 1 Aspect Ratio Grid acceptance:
'/= Positive diffraction pattern properties conforming to <60% undissolved filter, overlapped or folded Totals
<10% particulate coverage >5G% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped gnd squares <5% F B C I M >5u
'i- EDS spectrum conforming to laboratory holes or opaque areas
identification critena observed Clirysotile
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
CONFIDENTIAL, CITY_21MC100_003467354
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180673
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