GO. Structure Structure Type Length ID of Structure N or 7 EDS
No (Nonadb
F B C >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND
No Coord Elements)
AT 17a I -d—
/(
Struct = > 0.5p >5:1 .Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory icentification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B ! C M j >5p
V= EDS spectrum conforming to 'aboratory holes or opaque areas
Identification criteria onserved Chrysotile
amphiboles Amphibole
F = Single Fiber Amosite
3 = Bunole (<3 fibers <1 liber diameter apart Crocidolite Ambiguous
C = Cluster i>3 Intersections) Anthophyllite \on-Asbestos |
Tremolite
M = Matrix i \on-Identified i
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470758
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176717
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176717Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.