TEM Asbestos air sample results, NYC BOE, Feb 1 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 February 1, 2002.
GO. Structure Structure Type Length ID of Structure N or v' EDS
(Nonadb
No F B C M >=05 M >=51J Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
Struct = > 0.5p „> 5:1 Aspect Ratio Grid acceptance:
V= 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
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES ) Amphibole
F = Single Fiber Amosite
E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite
Ambiguous
Anthophyllite I Non-Asbestos
C = Cluster (>3 Intersections)
Tremolite
M = Matrix
Actinolite 1 Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467652
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180862
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NYC-WTC_000180862Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.