TEM Asbestos air sample results, NYC BOE, Feb 2002
Machine-extracted title · confidence 95%
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education facility.
GO. Structure Structure lype Length ID of Structure N or A EDS
No (Nonadb
F B C i M >=05 p >=51J Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
77^
Q
7
I' I
Struct = > 0.5g > 5:1 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
least 20 unfolded or overlapped aria squares <5% B ! C i M I
y- EDS spectrum conforming to laooratory holes or opaque areas
identification criteria observed Chrysorile ) ! i
’ 1
AMPHIBOLES Amphibole i
F = Single Fioer Amosite
5 = Sundie (<3 fibers <1 fiber diameter aoart Crocidolite Ambiguous !
C = Cluster [>3 intersections) Anthophyllite Non-Asbesros i
Tremolite
M = Matrix Non-Identined i
NSD = No Structures Detected
Actinolite
I i
CITY_21MC1OO_OO31O3176
NYC-WTC_000183768
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NYC-WTC_000183768Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on November 15, 2001.