GO. j Structure Structure Type Length ID of Structure N or X EDS
(Monadb
I No F B C M >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND
, No Coord Elements) 1
<5m
i7^
XX (/___
((
H
I I
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
Iaborato7 identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unloided or overlapped grid squares <5% F B C M >5u
7= 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
NSO = Mo Structures Detecteo
CONFIDENTIAL, CITY_21MC100_003470987
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176872
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176872Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 27, 2002.