TEM Asbestos air sample results, NYC BOE, Apr 2002
Machine-extracted title · confidence 95%
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from the NYC Board of Education on April 13, 2002.
Structure Slructure Type Length ID Of Structure .\j or 'I EOS
GO.
(Nonadb
No F B C M >=5lJ Clirys Amphibole Nonasb ArabigJNO
Elements)
: No ' Coord <5m
■“~T
:■
Struct = > O.Sp .> 5; 1 Aspect Ratio Grid acceptance:
'I- Positive diffraction pattern properties conforming to *50% undissolved filter, overlapped or folded Totals
laboratory identificaSon criteria absented 'rl0% paniculate coverage >50% coverage ale
least 20 unfolded or overlapped grid squares <5% F B C M >5p
■/= EDS spectrum conforming to laboraloiy holes or opaque areas
identificatioii criteria obsen/ed Chrysotile
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
T remolite
M = Matrix
Actinolite Non-Identified
NSD = No Structures.Oeiected
CONFIDENTIAL, CITY_21MC100_009505416
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000178899
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000178899Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 1, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.