NYC 9/11 Public Portal Document
New York, New or uu 1v
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r• September 21, 2001
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Analysis
Re. Report of TEM
a P9r. microscopy ITEM
transmission electron
are the results of from our Group No. 5569:
flow yn9
of two PCM air samples
lysis
lent : Mid- State Southend Avenue
Afa': ect Name: 375 3L and 3H, Building
400
cation: Apartments Lab: 09/27/01
gamples received in TEM you
data transmitted to
will confirm and document the conformance with the
These results were performed in strict
analyses August 15,
today. The NIOSH method 7402,
Issue 2,
methodologY of the
samples were examined
openings from each of the 1,OOOX and 10 OOOX)
Forty grid lapP roximately
relatively low magnifications and widths between o.25um
greater than Sum in length
for structures length to width ratio greater than 3:1
and Sum, and Navin- g a e enough to be observed by PCM
be larg the samples in
These structures would structures were detected in
analysis. Non-asbestos
proportions:
the following
cellulose F/CC as
sample gypsum Asbestos
number
100.0 0.0
11 0.0~ 44.3% 0.0
12 55.7
C 0. of F/CC as asbestos .
.sample exceeds
As a consequence, no
Gorycki, Director of
Dr. Michael A.
The analyses were supervised by performed by ATC d/b/a
Electron Microscopy- These analyses were
be reproduced only in its
This report may
ATC Associates Inc. this laboratory.
without prior permission of
entirety and not
NYC-WTC 000117501
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