GO. Structure Structure Type Length ID of Structure N or n EDS
No (Nonadb ■
F B C M -05 p >=5p Chrys Amphibole Nonasb ■ Ambig/NO
No Coord <5u Elements)
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria obsen/ed <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 I Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
T remolite
M = Matnx Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467055
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180481
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000180481Source: NYC Law Department, mirrored locally
Document containing laboratory findings for a transmission electron microscopy analysis of an asbestos air sample from a New York City Board of Education site.
Technical data sheet for the eleventh transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.
Document containing laboratory findings for a transmission electron microscopy analysis of an asbestos air sample from a New York City Board of Education site.
Document containing laboratory findings for a transmission electron microscopy analysis of an asbestos air sample from a New York City Board of Education site.