NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name: NYC BOE Volume (liters): 1936
Lab Group #: 5940 Filter Type / Filter Area: MCE 385 mm"
Lab Sample #: 19 Grid Opening Size: 0.01124
Client Sample #: 19 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ID: 37W Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 11/21/01
Analysis Performed By:
ROMAN PEYSAKHOV
GO, Structure ; Structure Type Length ID of Structure N or 9 EDS
(IMonadb
No F B C M >=05 jj >=5p Chrys Amphibole Nonasb Ambig/ND
- No Coord Elements)
<5p
T.Yi'
X
//
AC) -----
Struct = > 0.5 p > 5:1 Aspect Ratio Grid acceptance:
9= 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 oroveriapped grid squares <5% F B C M >5u
’/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Clirysotile
rAMPHIBOLES 1 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_21MC1OO_OO3O834O9
NYC-WTC_000189073
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