TEM Asbestos air sample results, NYC BOE, Jan 2002
Machine-extracted title · confidence 50%
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 27, 2002.
GO). ! Structure Structure Type Length ID of Structure N or 7 EDS
j No (Nonadb
F B C M >=05 |j Chrys Amphibole Nonasb Ambig/ND
No Coord I <5p Elemenls)
1
4
Struct = >0.Pp > 5:1 Aspect Ratio Grid acceptance:
9= Positive diffraction pattern properties conforming to <50% undissolveti filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ale
laboratory identification criteria observed
9= EDS spectrum conforming to laboratory
least 20 unfolded or overlapped grid squares <5%
holes or opaque areas
F B C I M >5u
identification criteria observed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
8 = 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_003467570
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180811
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000180811Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on January 28, 2002.