GO. i Structure Structure Type Length ID of Structure N or \ EDS
! No (Nonadb
F B C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord I <5u Elements)
'K____
-J—
7 i
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
\'= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals
iaboratorv identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% ■ F ) B i C I M >5u
=25 spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrj'sotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <' fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite Non-Identified
NSD - No Structures Detected
CITY_21MC100_003104428
NYC-WTC_000183974
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000183974Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from the New York City Board of Education on November 13, 2001.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from the New York City Board of Education on November 13, 2001.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from the New York City Board of Education on November 13, 2001.