GO. Structure Structure Type Length ID of Structure Nory EDS
No (Nonadb
F B C M >=05 M Chrys Amphibole Nonasb Ambig/ND
/ri No Coord <5p Elements)
Z£
Struct = > O.Sp > 5; I Aspect Ratio Grid acceptance:
7 = Positive diffraction pattern properties conforming to <50% undissolued filter, overlapped or folded Totals
laboratory identification criteria observed <10% parlicuiale coverage >50% coverage ate
least 20 unfolded or ovedapped grid squares <5% F B C M >5u
'/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHtBOLES 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_21MC1OO_OO3388387
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229835
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000229835Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 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 data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 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 data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 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.