GQ, Structure Structure Type Length ID of Structure N or v ] EDS
No (Nonadb j
F B C M >=05 p =5m Chrys Amphibole Nonasb I Ambig/ND
Coord <5p Elements) )
2 if
—
Struct = > 0.5a > 5:1 Aspect Ratio Grid acceptance:
2= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded T() fills
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <6% F B j C M >5ij
v'= 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_OO3468266
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT, 2008
NYC-WTC_000181285
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NYC-WTC_000181285Source: NYC Law Department, mirrored locally