GO. Structure Structure Type Length ID of Structure Ncr v EDS
No >=05 |j r I>=5(j (Nonadb
B C M Chrys Amphiboie Nonasb Ambig/ND
No Coord <51J Elements)
2
Struct = > 0.5|i -■> 5:1 Aspect Ratio Grid acceptance:
>)= Positive diffraction pattern properties conforming to <60% undissQlved filler, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5%
EDS spectrurri conforming to laboratory holes or opaque areas
F B I C M
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle {<3 fibers <1 fibei diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003468036
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181144
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000181144Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.