GO. Structure Structure Type Length ID of Structure N or y EDS
(Noradb
No F B C M >=05 u >=5p Chrys Amphibole Nonssb Ambig/ND
No Coord <5p Elements)
z s3
Struct > C.iu > 5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Tonils
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
7= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
i AMPHIBOLES j Amphibole
F = Single Fiber i Amosite ;
B = Bundle (<3 iioers <1 fiber diameter apart Crocidolite i Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Vlatrix Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003458485
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179222
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000179222Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample from the NYC Board of Education collected on December 24, 2001.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from NYC Board of Education facilities in December 2001.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 11, 2002.