GO. Structure Structure Type Length ID of Structure N or 7 EDS
(Nonadb
No F B C M >=05 p 7^ Chrys Amphibole Nonasb, Ambig/ND
No Coord <5p Elements)
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
'J- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped 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 >5(j
V' EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES ' Amphibole
F = Single Fiber Amosite I
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_002723153
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230294
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000230294Source: NYC Law Department, mirrored locally
Technical data sheet for the fourteenth transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.