GC. Structure Structure Type Length ID of Structure Nory EDS
(Nonadb
No F e c M >=05 y >=5p Chrys Amphibole Nonasb Ambig/ND
Elemens)
No Coord <5y
JX
y-
7^ I !
!------ H
Struct = > 0.5y >5:1 Aspect Ratio Grid acceptance;
V= 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 M >5m
V= EOS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
f amphiboles"! Amphibole
F = Single Fiber i Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crorddolite Ambiguous
C = Cluster (> J Intersections) ) Anthophyllite Non-Asbestos
! Tremolite
M = Matnx Non-Identified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003470682
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176663
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000176663Source: 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.
Technical data sheet recording transmission electron microscopy parameters and observations for the second asbestos air sample analyzed on January 22, 2002.