~G0? Structure Structure Type Length ID of Structure N or V EDS
No (Nonadb
F B C >»05p >=5y Chrys Amphibole Nonasb Ambigfl^D
! No ] Coord <5m Elements)
------
I----- r
I----- i-
H I
Struct = > 0.5(1 -> 5:1 Aspect Ratio Grid acceptance:
>/. Positive difitactot pattern properties confomiing to Totals
laboratwy idenMcafen criteria obsawed " <10% patoate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5m
EOS spectrum confominj to laboratory holes or opaque areas
identircafon criteria observed Chrysotile
AMPHIBOLES Amphibole
F« Single Fiber Amosite
8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C * Cluster (>3 Intersectkins) i Anthophyllite Non-Asbestos
' Tremolite
M = Malrix i Actinolite ' Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003456506
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178975
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000178975Source: NYC Law Department, mirrored locally
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 2002.
Document recording transmission electron microscopy analysis data for an asbestos air sample from a New York City Board of Education site in March 2002.