GO. Structure Structure Type Length ■ ID of Structure N or v) EDS
No (Nonadb
F B C M >=05 u >=5|j Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
W tZE
J
n
/iiS
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
\= Positive diffraction pattern properties conforming to *^0% 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 M >5u
7= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite i Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
' Tremolite
M = Matrix ' Actinolite ' Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467130
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180529
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000180529Source: NYC Law Department, mirrored locally
Technical data sheet for the fourteenth transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.
Technical data sheet for the fourteenth transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.