GO. Structure Structure Type Length ID of Structure Norv EDS
No (Nonadb
F B C M >=05 p >=5pi Chrys Amphibole Nonasb Ambig/ND
No Coord <Sp Elements)
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:
V= Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% partcuiate coverage >50% coverage ate
least 20 unfoloed 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 1 Amosite
B = Bundle (<3 fibers <1 liber diameter apart : Crocidolite Ambiguous
' Anthophyllite
C = Cluster (>3 Intersections) Non-Asbestos
Tremolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_00 2723184
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000230404
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000230404Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 2, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.