GO. Structure Structure Type Length ID of Structure N or v EDS
No (Nonadb
F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND
\o Coord <5U Elements) •
G *
vzzgs //
SL-----
Struct = > 0.5u >5:1 Aspect Ratio Grid acceptance:
\f= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laooratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped gnd squares <5% r B C i M : >5u
v= EDS spectrum conforming to laboratory holes or opaque areas i.
___________ I F
Identification criteria observed Chrysotile I
AMPHIBOLES Amphibole {
F = Single Fiber .Amosite
B = Bundle ;<3 fibers <1 fiber diameter apart Crocidolite Ambiguous j
C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified I
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003471198
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177016
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000177016Source: NYC Law Department, mirrored locally
Laboratory report containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location.
Laboratory report containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location.