60. Structure Structure Type Length ID of Structure N or V EDS j
(Nonadb i
No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
<5m Elements) |
tt
Struct = > 0.5 p -> 5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification critena observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% 7 FfB” C JM 1 >5u
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile i
AMPHIBOLES Amphibole i
F = Single Fiber Amosite
Crocidolite
Ambiguous I
S = Bundle {<3 fibers <1 fiber diameter apart
C = Cluster (>3 Intersections) Anthophyllite ! Non-Asbestos :
Tremolite j Non-ldentifiedn
M = Matnx
NSD = No Structures Detected
Actinolite I. ___ J
. .... - I....
CONFIDENTIAL, CITY_21MC100_003389239
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230434
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NYC-WTC_000230434Source: NYC Law Department, mirrored locally