NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters!: 1848
Lab Group #: 6908 Filter Type / Filter Area: MCE 385 mnr
Lab Sample #: 23 Grid Opening Size: (.1.01 124
ClienCSampleJL 2(3 Area Examined: 0.04496 mm-^
GRID BOX: Magnification: 20.000
GRIDID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 3,3/02
Analysis Performed By:
MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nor v T ^s
(Nonadb
No F B C M ■=05p >=5m Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
j -- r
r------- 1------- r
1------- 1------- 1
-------- —!—1—
■i----- 1-----1----- i----- r
1——1
i
1---------- '
1----- 1 t------- r
j----- h
Struct = > 0.5p ;> 5:1 Aspect Ratio Grid acceptance;
'J- 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 M
v= EDS spectrum conforming to laboratory holes or opaque areas i.
identification critena observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber
I !
Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite
Ambiguous
C = Cluster (>3 Intersections) Anthophyllite ) Non-Asbestos
Tremolite
M = Matrix M^onddentifiedi
Actinolite
NSD = No Structures Detected
CITY_21MC100_003102264
NYC-WTC_000183215
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