GC I Structure Structure Type ; Length ID of structure N or y EDS
(Nonadb
No r B C M >=Q5 u •=5p Chr/s Amphibole Nonasp Ambig/ND
No Coord <5p 1 Elements)
yF jgz 71^
y__
fl
/(
Struct = > 0 5p > 5:1 Aspect Ratio Grid acceptance:
'h Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C >5u
7= EDS spectrum conforming to laboratory holes or opaque areas
Identification critena observed Chrysotile
' AMPHIBOLES , Amphibole
F = Single Aber Amosite
E - Bundle (<3 fibers <1 fiber diameter apart ' Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite 1
NSD = No Structures Detected
CITY_21MC1OO_OO31O4973
NYC-WTC_000184338
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000184338Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected at NYC Board of Education facilities on November 9, 2001.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected at NYC Board of Education facilities on November 9, 2001.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected at NYC Board of Education facilities on November 9, 2001.