GO. Structure Structure Type Length ID of Structure N or V EDS
(Nonadb
No : F B C j M >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord Elements)
<5u
w AM 'MP 4
Struct = > 0.5u >5:1 Aspect Ratio Grid acceptance:
■7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overiapped grid squares <5% [ F i B C M >5u
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsenred Chry'sotile
AMPHIBOLES : Amphibole j
F = Single Fiber Amosite
B = Bundle (<3 fibers <' fiber diameter apart Crocidolite Ambiguous i
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i
Tremolite
M = Matrix ! Non-Identified i
NSD = No Structures Detected
Actinolite
i_ .
CITY_21MC100_0 03106660
NYC-WTC_000185494
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000185494Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 18, 2001.
Laboratory documentation of transmission electron microscopy analysis results for an air sample collected from a New York City Board of Education site in December 2001.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 18, 2001.
Laboratory documentation of transmission electron microscopy analysis results for an air sample collected from a New York City Board of Education site in December 2001.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 18, 2001.
Laboratory documentation of transmission electron microscopy analysis results for an air sample collected from a New York City Board of Education site in December 2001.