GO. Structure Structure Type Length ID of Structure N or v EDS
No >=05 p Amphibole Nonasb Ambig/ND
(Nonadb
F B C M >=5p Chrys Elemenls)
No Coord <5p
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals
Iaborato7 identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
0 = Bundle (<3 fibers <1 fiber diameter apart Croctdolile I Ambiguous
C = Cluster (>3 Intersections) Anthophyllite , Non-Asbestos
Tremolite I
M = Matrix Non-Identified
Actinolite i
NSD = No Structures Detected
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on April 4, 2002.