GO. Structure Structure Type Length ID of Structure Norv EDS
No >=05 p ;>=5iJ (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
Elements)
: No i Coord ■ <5p
■---------------- «:—
Struct = > 0.5 p > 5:1 Aspect Ratio Grid acceptance:
^l^ilNtaeta pattern properte conforming to over^ orfolded Totals
laboratory Identification crilaita observed <t0% particulate coverage >50% coverage ale
least 20 unfolded or overfapped grid squares <S% F B C M >5p
EDS spectrum conforming to laboratory holes or opaque areas
identification criteria 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 Actinolite ■ Non-Identified
NSD - No Structures Detected
CONFIDENTIAL, CITY_21MC100_003456513
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178982
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000178982Source: 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.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on February 3, 2002.