GO. Structure Structure Type Length ID of Structure N or EDS
No B C M >=05 N Amphibole Nonasb (Nonadb
F >=5N Chrys Ambig/ND
No Coord <5N Elements)
fT (~
//
cTp2 ,,'
z
If
Struct = > 0.5µ -> 5:1 Aspect Ratio Grid acceptance:
l= 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
1= 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
M = Matrix Tremolite
Actinolite Non-Identified
NSD = No Structures Detected ._--
NYC-WTC 000102790
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NYC-WTC_000102790Source: NYC Law Department, mirrored locally