GO. Structure Structure Type Length ID of Structure N orV EDS
No (Nonadb
F B C M >’05 M :>=5p Chrys Amphibole Nonasb Ambig/ND
Elements)
No . Coord <5m <
-iL—
==
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 >5p
'Z: EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
I AMPHIBOLES j 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_0 03470560
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176588
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176588Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples for asbestos collected from a New York City Board of Education facility.
Laboratory report containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location.
Laboratory report documenting transmission electron microscopy analysis of air samples for asbestos collected from a New York City Board of Education facility.