NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE VolumeJIitersl: 1840
Lab Group #: 7503 Filter Type / Filter Area: MCE 385 mm-
Lab Sample 6 Grid Opening Size: 0.01124
Client Sample #: 06 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: 323/ Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 4/22/02
.Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or \ EDS .
(Nonadb '
No F B C >=05 M Chrys Amphibole Nonasb Ambig/ND
, / No Coord Elements)
<5tJ
* IS Z22 (i
(I
Struct - > ().5u. > 5:1 .Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter overlapped or folded Totals
'aboratory identification enter a observed <10% particulate coverage >50% coverage ate
'east 20 unfolded or overlapped grid squares <5% F j B I C I M I >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Ctirvsotile
.AMPHIBOLES Amphibole
F = Single Fiber Amosite J___ ___ i
B = Bundle <3 fibers <1 fiber diameter apart Crocidolite
Ambiguous !
C = Cluster i>3 Intersections! Anthophyllite Non-Asbestos i
Tremolite
M = Matrix
Actinolite 5 NoindentifiedU
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003471218
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177028
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