GO. Structure Structure Type Length ID of Structure N or V EDS
No (Nonadb !
F B C M >=05 M >=5pi Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
T
A "
Struct = > 0,5p > 5:1 Aspect Ratio Grid acceptance:
7= 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 I .M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = :3ingle Fiber Amosite
B = Bundle (<3 fibers <1 fiber ciameter apart Crocidolite Ambiguous
C = Cluster l>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Actinolite Non-Identified
NSD = No Structures Detected
......... I
CONFIDENTIAL, CITY_21MC100_0 03470966
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176858
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176858Source: 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.
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.
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.