GO. Structure Structure Type Length ID of.Structure N or 4 EDS
Amphibole Nonasb (Nonadb
No F B C M >=05 u >=5|j ' Chrys Ambig/ND
. No Coord <5p Elements)
2>/7lZWS3ZlS
-
Struct = > 0.5p -> 5:1 Aspect Ratio Grid acceptance:
4= positive ditfracfion pattern properties conforming to <50% Totals
laboratory identification crteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5|J
4= EDS spectrum confotnting to laboratory holes or opaque areas
identification criteria obsen/ed 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 j Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003433538
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175818
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000175818Source: 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 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 27, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on January 27, 2002.