GO. Structure Structure T ype Length ID of Structure N or EDS
No ■=05p ; (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
No Coord <5p Elemenls)
'' ,j
Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:
4= Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overtapped grid squares <5% F B C M >5u
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria obsenzed 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_21MC100_003468291
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181301
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NYC-WTC_000181301Source: NYC Law Department, mirrored locally