GO. Structure Structure Type Length ID of Structure N or v EDS
(Nonadb
No F B C M >=05 M Chrys Amphibole Nonasb Ambig/ND
No Coord <5|J Elements)
7VW
4
(I
Struct = > 9.5g ..>5:1 Aspect Ratio Grid acceptance:
'/= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped 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
'/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
E = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos
i Tremolite
M = Matrix Actinolite Non-Identified
J___
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467329
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180652
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000180652Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 3, 2001.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 3, 2001.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on December 3, 2001.