NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1984
Lab Group #: 7349 Filter Type / Filter Area: MCE 385 mm^
Lab Sample #: 4 Grid Opening Size: 0.01124
Client Sample #: 04 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 4/7/02
Analysis Performed By:
MICHAEL GORYCKI
GO. Structure Structure Type Length ID of Structure N or 7 EOS
(Nonadb
5F No Coord
No F B C M >=05 M
<5u
>=5)J Chrys Amphibole Nonasb Ambig/ND
Elements)
ESI 2^
/I
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filler, overiapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ale
7= EDS spectrum conforming to laboratory
least 20 unfolded or overiapped grid squares <5%
holes or opaque areas
F B c M >5p
identification criteria obsenzed 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-tdentified
Actinolite
NSD = No Structures Detected
CITY_21MC100_002892621
NYC-WTC_000224065
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