GO. Structure Structure Type Length ID of Structure N or y EDS
No (Nonadb
F B C M >=05 M >=5|J Chrys Amphibole Nonasb Ambig/ND
Elements)
No Coord <5p
/
■ 3
Struct = >0.5p >5:1 Aspect Ratio Grid aeceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria oteetved <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5u
EDS spectrum conforming Io 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
M = Matrix
NSD = No Structures Detected
Tremolite
Actinolite Non-Identified
H
CONFIDENTIAL, CITY_21MC100_003471426
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177176
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000177176Source: NYC Law Department, mirrored locally
Technical document showing transmission electron microscopy results for an asbestos air sample collected from a New York City Board of Education facility.
Laboratory report documenting transmission electron microscopy analysis of air samples for asbestos collected from a New York City Board of Education facility.
Technical document showing transmission electron microscopy results for an asbestos air sample collected from a New York City Board of Education facility.
Technical document showing transmission electron microscopy results for an asbestos air sample collected from a New York City Board of Education facility.