GO. Structure Structure Type Length ID of Structure N or v EDS
No (Nonadb
F B C >=05 M >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5tJ Elements)
^5
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 >5U
V= EDS spectrum ccrforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
amphiboleF] Amphibole
F = Single Fiber Amosite I
B = Bundle '<: fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) j Anthophyllite Non-Asbestos
i Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_0 03467885
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181034
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000181034Source: 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 February 1, 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 an air sample collected from a New York City Board of Education site on February 1, 2002.