TEM Asbestos air sample results, NYC BOE, Mar 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 site.
GO. Structure Structure Type Length ID of Structure N or V EDS
No >=05 p :>=5p (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
No ' . Coord <5m Elements)
Struct = >0.5(i >5:1 Aspect Ratio Grid acceptance:
'J= 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 grid squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
, AMPHIBOLES I Amphibole
F = Single Fiber : Amosite I
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite i
M = Matrix Actinolite i Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470627
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176629
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NYC-WTC_000176629Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.