NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 5897 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 20 GridOpening Size: 0.01124
Client Sample #: 20 Area Examined: 0.04496 mm*
GRID BOX: Magnification: 20,000
GRIDED: IgC>^ Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 11/15/01
Analysis Performed By: (t'
MICHAEL GORYCKI
GO, Structure Structure Type Length ID of Structure N or EDS
No >=05 u AmphitKile Nonasd Ambig/ND
(Nonadb
F B C M Chrys
No Coord <5u Elements)
I /VS/?
it
/f
1/
Struct = > 0.5(1 _> 5:! Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
'J= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B c M >5u
identification criteria observed Chrysotile
.AMPHIBOLES Amphibole
F = Single Fiber Amosite
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 Structures Detected
CITY_21MC100_003083265
NYC-WTC_000188985
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