GG Sfructure Structure Type Length ID of Structure NorV EDS
No (Nonedb
iNoi Coord F B C M >=05 u >=5(j Chrys Amphibole Nonasb Ambig/NC
<5p Elements)
J
T
+
Struct 0,5 u > S: I Aspect Ratto Grid acceptance:
Positive diffraction pattern properties conforming to <50% undissolved Stter, overlapped or folded Totals
laboratory tdentWcation criteria observed <10% parttcutile coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5m
EDS spedrum conforming to iaboratory holes or opaque areas
idenffloation criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
e = Bundle (<3 Ubers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 IntersecSons) Anthophyllite Non-Asbestos
Tremolite
M> Matrix
Actinolite ■ Non-Identified
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003456515
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178984
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000178984Source: 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.