NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1856
Lab Group #: 6582 Filter Type / Filter .Area: MCE 385 mm-
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 10 Area Examined: 0.04496 mm"
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 2/7/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or v EDS 1
No Amphibole Nonasb Ambig/ND
(Nonadb I
F B C M >=05 u Chrys Elements)
No Coord <5m
If
xzzEz ft ((
4
______
Struct = >0.5u >5:1 Aspect Ratio Grid acceptance:
'/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5u
^= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 liber diameter apart ' Crocidolite
Ambiguous
C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467776
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180956
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