ATC ASSOCIATES INC. - TEM ANALYSIS
LAB GROUP #: 5762 - 10.'25 Cl
Operator
Filter Type MCE 25 mm
Lab Sample No. 62221
Filter Area 385 mm"2 ~
Client Spl. No. 7 Disk No.
Grid I.D. r
Instrument I.D. EM 10 CRX
•2 Comments
(GO) Area 0.01124 mm
Sc V Magnification 16.400X to 70 s/mm"2. 1
6 ( 4 721 Struct. Corspd
No. GO to be Analyzed
Acc. Voltage 80 kV
EDS
N or t/
Type Length I.D. of Structure (Nonasb.
GO. Structure Sv1Qture
urn
>. Bum Chrys. Amp hibole Nonasb. Ambig./ND Elements)
No Coord. No. F B C M <05 um
~ z ,ems -
I
I
I
I
1 H
`Photo No. from 1 In 5 asbestos-
containing samples)
HH ►denary au t 5arucwr=s .e... o -••--- -
to
__ _
tttm (let 4)
. __ ________
e...~ .n ......,nested soeetre
Struct = 0.5um & > 5:1 Aspect Ratio
(50% uudieaolve r.s overlappedUor o70e
<10% particulate coverage >50% coverage
Totals
overlapped grid squares
diffraction pattern) at least20ouunfoldedor
N- Not Observed (EDS spectrum or arose
PosiUvs diffraction pattern properties conforming
Unused rtioa
to laboratory Identification criteria observed. of po Chrysotile
For ¢h 0.79mm •Wei for (020) nrtscUong.
spacing for the latter 7Ins re stnaWng Avoided p¢rUoa
0.Wom *pacing
of (110) and (130) reflacUoma. of niter
For amphibene*: OA9nm toyer ling spat. and appns. Portion of filter
Subject to (2mm vide► Amphibole
to
3.5 ratio of ocn-tvlaoed la r ling 51101, spacing summation
layer ling spat distance (0.09nm).
EDS spectrum conforming to Laboratory
Ambiguous
AMPHIBOLES
ldemtfiaaUon criteria observed.
Amosite
F. Single Fiber (1-3 interactions = 1-3 fibers)
B. 25mm filter Crocidolite Non - asbestos
Bundle (>9 fibers <1 fiber diameter apart)
C= Cluster (>9 intersection) 9teppisg Ruler. Anthophyllite
Mn Matrix - ^• _ >So ,/0.0, or in .., s CO. Tremolite
Non -Identified
NYC-WTC 000104099
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000104099Source: NYC Law Department, mirrored locally