GO. Structure Structure Type Length ID of Structure Norv EDS
(Nonadb
No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND
Na Coord <5p Elements)
Struct = > 0.5(1 > 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 overiapped grid squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES~1 Amphibole
F = Single Fiber Amosite i
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
M = Matrix
Tremolite
Actinolite Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003466984
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180427
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000180427Source: 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 January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on January 26, 2002.