GO. Structure Structure Type Length ID of Structure N or a/ EDS
No (Nonadb
F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
No Coord <5m Elements)
((
if
.Z R /f
Struct = > 0.5u .>5:1 Aspect Ratio Grid acceptance:
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 M >5u
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
! T remolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003458348
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179158
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NYC-WTC_000179158Source: NYC Law Department, mirrored locally