GO. Structure Structure Type Length ID of Structure Norv EDS
No (Nonadb j
F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
Elements) I
No Coord <5p
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
7= positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
least 20 unfolded or overlapped crd squares <5% F B C M [ >5(J
4- EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix
Actinolite : Non-Identified
NSC = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470964
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176856
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176856Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.
Document containing transmission electron microscopy results for an asbestos air sample from a New York City Board of Education facility in March 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.