NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1920
Lab Group #: 7567 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 15 Grid Opening Size: 0.01124
Client Sample #: 15 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: too KeV
# Grid Openings: 4 Analysis Date: 4/29/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or \ EDS I
No >=05 p Amphibole Nonasb
(Nonadb ;
F B C M >=5tJ Chrys Ambig/ND
Elements) ■
No Coord <5m
Struct = >0.5p > 5:1 Aspect Ratio Grid acceptance:
v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M j >5p
7= EDS spectrum conforming to laboratory
identification criteria obserred
F = Single Fiber
holes or opaque areas
A.MPHIBOLES
Amosite
Chrysotile
Amphibole
znz I i
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 SItuctures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3471347
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177120
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