Technical data sheet recording transmission electron microscopy parameters and observations for the third asbestos air sample analyzed on January 22, 2002.
GO. Structure Structure Type . Length ID of Stnjcture N or n EDS
(Nonadb
No F B C M >=5(J Chrys Amphibole Nonasb Ambig/ND
No Coord <5|j Elements)
.. 3
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
>/= 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 M >5tJ
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES Amphibole
F = Single Fiber Amosite
0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 intersections) Anthophyllite Non-Asbestos
T remolite
M = Matrix i Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003433518
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175806
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000175806Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Technical data sheet recording transmission electron microscopy parameters and observations for the first asbestos air sample analyzed on January 22, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Technical data sheet recording transmission electron microscopy parameters and observations for the first asbestos air sample analyzed on January 22, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.
Technical data sheet recording transmission electron microscopy parameters and observations for the first asbestos air sample analyzed on January 22, 2002.