GO. Structure Structure Type Length ID of structure N or '/ EDS
No F B C M >=05 u >=5p Chrys Amphibole Nonasb •AiWNb :
No Coord <5m I Elements)
S’
3
Struct == > 0.5u > 5:1 Aspect Ratio Grid acceptance:
a/= 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 I M >5u
EDS spectrum conforming to aborato.y 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 = Matrx Non-Identified
Actinolite i..
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470934
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176834
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176834Source: NYC Law Department, mirrored locally
Laboratory data sheet documenting transmission electron microscopy analysis of an asbestos air sample collected from a New York City Board of Education site.
Laboratory data sheet documenting transmission electron microscopy analysis of an asbestos air sample collected from a New York City Board of Education site.
Laboratory data sheet documenting transmission electron microscopy analysis of an asbestos air sample collected from a New York City Board of Education site.