NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1944
Lab Group #: 5849 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 8 Area Examined: 0.04496
---------------------- mm-
GRID BOX: Magnification: 20 000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 11/8/01
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS
(Nonadb
No F B ! C M >=05 u >=5(j Chrys Amphibole Nonasb Ambig/ND
, No Coord <,5:, Elements)
a> xp
H
1---- L
Struct = > 0 5n > 5:1 Aspect Ratio Grid acceptance:
PosHive diffraction pattern properties conforming to ^50% undissolved filter, overopped or folded Totals
laboratory identification criteria observed
lAk'*****^^^, i*4AI <107o particulate coverage >50% coverage ate
least 20 unfolded or overiapped grid squares <5% F B C M >5m
A- EDS spectrum confomiing to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES ! Amphibole
r = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections), Anthophyllite Non-Asbestos
Tremolite
M = Matrix Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_002743300
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179127
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