GO. Structure Structure Type Length ID of Structure Norv EDS
No Nonasb (Nonadb
F B C M >=05 y >=5p Chrys Amphibole Ambig/ND
Elements)
No Coord <5|J
7^
Struct = > 0.5g -> 5:1 Aspect Ratio Grid acceptance:
Positive diffracfion pattern properties conforming to '50% Totals
laboratory identification criteria observed
least 20 unfolded or overlapped grid squares <5% F B C M >5p
yl= 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 Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470432
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176502
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176502Source: NYC Law Department, mirrored locally
Document recording transmission electron microscopy analysis data for an asbestos air sample from a New York City Board of Education site in March 2002.