GO. Structure Structure Type Length ID of Structure N or 9 EDS
(Nonadb
No F B c M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
No ^oord <5p ! Elements)
db
K
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
'J= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratoiy identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_005803176
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181668
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NYC-WTC_000181668Source: NYC Law Department, mirrored locally