GO. Structure Structure Type Length ID of Structure Nor 7 EDS
No (Nonadb
F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
zz
(1
/dO z
-i
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
V= Positive diffraction pattern properties conforming to <50% undissolved niter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 2D 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 Amphibole
E = 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_003470607
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176618
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176618Source: 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 filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.