TEM asbestos air sample results, NYC BOE, June 2002
Machine-extracted title · confidence 50%
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 20, 2002.
GO. Structure Structure Type Length ID of Structure Nory EDS
No Nonasb (Noradb
F B C M >=05 M >=5p Chrys Amphibole Ambig/ND
No Coord <5p Elements)
Struct = > 0.5p. >5:1 Aspect Ratio Grid acceptance:
Positive diffraction pattern properties confoiming to
<50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or oveilapped grid squares <5% F B C M >5y
■/= 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 i Non-Asbestos
Tremolite j
M = Matra Actinolite Non-Identified
NSO = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003461688
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179836
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NYC-WTC_000179836Source: 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 20, 2002.
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 January 28, 2002.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 20, 2002.
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 data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 20, 2002.
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site on June 19, 2002.