GO. Structure Structure Type Length ID of Structure Nor v EDS
No INonadb
F B C M >=05 M Chrys Amphibole Nonasb Ambig/ND
No Coord i <5(J Elements)
3^ /■
I i
Struct = > 0.5p >5:1 A.ipect Ratio Grid acceptance:
'A Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laporatory iceniification criteria observed < 10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% j F i B ! C i M
V = EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile j
AMPHIBOLES Amphibole |
F = Single Ficer Amosite
B = Sunale i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous '
C = Cluster !'>3 Intersections) Anthophyllite Yon-Asbestos '
Tremolite
M = Matrix Yon-Identified
Actinolite
NSC = No Structures Delected
CONFIDENTIAL, CITY_21MC100_003471141
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176975
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176975Source: 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 NYC Board of Education facilities on April 30, 2002.
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 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.