GO. Structure Structure Type Length ID of Structure Norv EDS
No (Nonadb
F B C M >=05 0 Chrys Amphibole Nonasb Ambig/IMD
Elemenis)
No Coord <5p
P a
I/
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
V= 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 untolded or overlapped grid squares <5% F B C M I >6p
>/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468143
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181215
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NYC-WTC_000181215Source: NYC Law Department, mirrored locally
Document recording laboratory analysis results for a transmission electron microscopy asbestos air sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 4, 2002.
Technical record showing transmission electron microscopy analysis data for an asbestos air sample collected from a New York City Board of Education site.
Laboratory count sheet recording transmission electron microscopy analysis data for an air sample collected from a New York City Board of Education site on January 31, 2002.
Document recording laboratory analysis results for a transmission electron microscopy asbestos air sample collected from a New York City Board of Education site.