GO. Structure Structure Type Length ID of Structure Nor x EDS
No (Nonadb
F B C M >=05 pi Chrys Amphibole Nonasb Ambig/ND
No .Coord <5m Elements)
/ xOx
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to *5°'^ 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 ’5u
EDS spectrum conforming to laboratory
C ! M
holes or opaque areas
identification criteria observed Chrysotile
' AMPHIBOLBS Amphibole
F = Single Fiber I Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003433664
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175880
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000175880Source: 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.