GO Structure Structure Type Length ID Of Structure N or EDS
No >=05 p (Nonadb
F B C M >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord Elements)
V2
A PZ.
(Q-z.
It
V/-------- -
Struct = > 0.5)1 >5:1 Aspect Ratio Grid acceptartce:
V = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria obsen/ed <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
identificalion criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle t<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_OO346814O
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181212
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NYC-WTC_000181212Source: NYC Law Department, mirrored locally