TEM asbestos air sample results, NYC BOE, Feb 2002
Machine-extracted title · confidence 50%
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
ID of Structure N or 7 1 ■
GO. Structure Structure Type Length EDS
No Ambig/ND ' (Nonadb
F B C M >=05 u Chrys Amphibole Nonasb
No Coord <5m Elements)
2L
/f
Struct = > 0.5u > 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 grid squares <5% F B C M >5|J
'J- EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chiysotile
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 i
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467689
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180890
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NYC-WTC_000180890Source: 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 air samples collected from NYC Board of Education facilities on February 3, 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 air samples collected from NYC Board of Education facilities on February 3, 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 air samples collected from NYC Board of Education facilities on February 3, 2002.