GO. Structure Structure Type Length ID of Structure N or 7 EDS
No (Nonadb
F B C M >=05 p " >=5p Chrys Amphibole Nonasb Ambig/ND
No Coorci <5u Elements)
Struct = > 0.5p _> 5:1 Aspect Ratio Grid acceptance;
Positive diffraction pattern properties conforming to *^0% undissolved filter, overlap^ or folded Totals
laboratory identification criteria observed
1.*^*,.—A**. aKa/km****! <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
i amphiboles' : Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos
Tremolite
M = Matrix Actinolite Non-Identified
NSD = No Structures Oetectec
CONFIDENTIAL, CITY_21MC100_0 03470595
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176613
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176613Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of air samples for asbestos collected from a New York City Board of Education facility.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.