GO. Structure Structure Type Length ID of Structure N or v EDS
(Nonadb
No F B C M >=05 y Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elements)
_ J'
Struct = > O.Sp >5:1 Aspect Ratio Grid acceptance:
4= Positive ditfracbon pattern properties conforming to “'SO”/, undissolved filter, overlapped or folded Totals
:*4♦ip!<10% particulate coverage >50% coverage ate
laoorator/ identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5tJ
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 Actinolite Non-Identified
NSO = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468366
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181352
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000181352Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 2002.