GO. Structure Structure Type Length IQ of Structure N or N EOS
No (Nonadb
F B C M >=05 p >=5|J Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
.34
1/
y
Struct ~ > 0.5p >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to ^^0% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ale
least 20 unfolded or overlapped end squares <5% F B C M 5 >5p
7= 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 Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470973
SUBJECT TO PROTECTIVE ORDER NO, 2, SEPT, 2008
NYC-WTC_000176859
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NYC-WTC_000176859Source: 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 NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.