GO. Structure Structure Type Length ID of Structure NorV EDS
No Ambig/ND (Nonadb
F B C M >=05 M >=5m Chrys Amphibole Nonasb
! No I Coord <5m Elements)
sc r?
J?
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
a/= 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 >5m
V= 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 i. Ambiguous
C = Cluster (>3 intersections) Anthophyllite ! I Non-Asbestos
Tremolite
M = Matrix I Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470801
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176747
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176747Source: NYC Law Department, mirrored locally
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 an air sample collected from a New York City Board of Education site on February 2, 2002.
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 an air sample collected from a New York City Board of Education site on February 2, 2002.
Laboratory report containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location.