GO. Structure Structure Type Length ID of Structure N or EDS
No (Nonadb
F B C M >=05 p :>=51J Chrys Amphibote Nonasb Ambig/ND
! No Coord <5m Elements)
■ 2- ‘
Struct = > 0.5p > 5; I Aspect Ratio Grid acceptance:
v'= Positive diffraction pattern properties conforming to <50% undissoived filter, overiapped or folded Totals
laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ale
least 20 unfolded or overiapped grid squares <5% F B C M >5m
V= 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
Tremolite
M = Matrix Actinolite i Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470856
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176784
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176784Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 26, 2002.