GO. Structure ■ Structure Type Length ID of Structure N or ■/
EDS
(Nonadb
No F B C M >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord Elements)
<5u
<(
tf
Ji
■ t
Struct = > 0.5p ,>5:1 Aspect Ratio Grid acceptance:
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 overlapped grid squares <5% F B C M >5u
y = EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsen/ed Chrysotile
' amphiboles"! Amphibole
F = Single Fiber ) Amosite
B = Bundle (<3 fibers <1 fiber diameter apart ’ Crocidolite Ambiguous
C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos
T remolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CITY_21MC100_003083194
NYC-WTC_000188934
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000188934Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a Board of Education site on November 15, 2001.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a Board of Education site on November 15, 2001.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a Board of Education site on November 15, 2001.