TEM Asbestos air sample results, NYC BOE, Apr 2002
Machine-extracted title · confidence 50%
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 5, 2002.
GO. Structure Structure Type Length ID of Structure Norv EDS
(Nonadb
No F B C M >=05 p - >=5|j Chrys Amphibole Nonasb Ambig/ND
' No ' Coord <5m Elements)
7 ----
' 27
Struct = > 0,5u > 5:1 Aspect Ratio Grid acceptance:
<= Positive diffraction pattern properties conforming to <=0% "tfssolved filter, ovedapped or folded Totals
laboratory identification criteria observed 10% particulate coveiage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5m
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria 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 Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470842
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176770
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NYC-WTC_000176770Source: NYC Law Department, mirrored locally
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 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 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 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 sample collected from a New York City Board of Education site on April 4, 2002.