GO. Structure Structure Type Length ID of Structure Norv EDS
No >=05 M Nonasb Ambig/NO (Nonadb
F B C M >=5p Ctirys Amphibole
/ No ■ Coord <5p Elements)
/ X/
__ L
y—
Struct = > 0 5g >5:1 Aspect Ratio Grid acceptance:
^1= 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 oveilapped gild squares <5% F B C M >5p
V= EDS spectrum conforming to laboratory holes or opaque areas
identification cnteria 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-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470744
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176709
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176709Source: NYC Law Department, mirrored locally
Record containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location in March 2002.
Laboratory report documenting transmission electron microscopy analysis of an air filter sample collected from a New York City Board of Education site.
Record containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location in March 2002.
Record containing transmission electron microscopy findings for an asbestos air sample collected from a New York City Board of Education location in March 2002.