TEM Asbestos air sample results, NYC BOE, Dec 2001
Machine-extracted title · confidence 95%
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from NYC Board of Education facilities in December 2001.
TEM Asbestos fair) Count Sheet
Client Name: NN C BOE VolumeJliter^ 1920
Lab Group #: 6165 Filter Type / Filter Area: MCE 385 mm-
Lab Sample 15 Grid Opening Size: 0.01124
Client Sample #: 15 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000
GRID ED: Accelerating Voltage: 100 KeV
# Grid Openings: 4 Analysis Date: 12/21/01
Analysis Performed By:
ROMAN PEYSAKHOV
GO. Structure Structure Type Length 1 ID of Structure N or 7 EDS
No F B ' C M >=05 u >7/3 Chrys Amphibole Nonasb Ambtg.'ND
(Nonadb
No Coord I <5u Elements)
(I
n
i
__L__
Struct = > Ooy > 5:1 Aspect Ratio Grid acceptance:
N= Positive diffraction pattern properties conforming to undissolved filter, overtapped or folded Totals
laboratory identification criteria observed 10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B i C M >5p
9= EDS spectrum conforming to laboratorv holes or opaque areas
identification cnteria 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
‘JSC = No Structures Detected .1.
CITY_21MC100_003104968
NYC-WTC_000184333
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NYC-WTC_000184333Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.