GO. Structure, Structure Type Length ID of Structure NorV EDS
No (Nonadb
F B C M '=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5u Elemenls)
. I
Z r—---------------
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 ale
least 20 unfolded or overlapped grid squares <5% F B C M >5u
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Clirysotile
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_003468439
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181398
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000181398Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 31, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 31, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 31, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 31, 2002.