GO, Structure Structure Type Length ID of Structure N or v EDS I
No (Nonadb 1
F B C M >=05 p >=5)j Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
Struct = > 0.5p > 5;I Aspect Ratio Grid acceptance:
9= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Tot^
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped and squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber 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_21MC1OO_OO34679O6
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181048
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000181048Source: NYC Law Department, mirrored locally
Technical data sheet for the fourteenth transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.