- TEM ANALYSIS
ATC ASSOCIATES INC.
L1 LAB GROUP #: 5761 -
1025/01
Operator
Filter Type MCE 25 mm
Lab Sample No. 62211
Filter Area 385 mm~2
Client Spl. No. 38 Disk No.
Grid I.D.
Instrument I.D. EM 00 CRX Comments
(GO) Area 00l124_0n1
40oX Corsp4 to 70 s mm
Screen Magnification 16 ( 4.721 Struct
No. GO to be Analyzed _
Acc. Voltage 80 kV EDS
Nor ~/
Length I.D. of Structure (Nonasb.
tructure um Amphibole Nonasb. Ambig./ND Elements
No. Sum Chr s.
~or
4oiCoord.l IFIBI
str~CM
1
I
spectra
Identify all ■tsucture■ usi BD! (let 4)
`photo No. from l in S asbestos- Grid acceptance.
containing samples) diasohre
>50% coverage■
9truct = > 0.5um & > 5:1 Aspect Ratio <10% particulate coverage grid 9tierce
legal 20 unfolded or overlapped
N. Not Obaer.ed (EBB spectrum or diffraction <5% holes o o a tie areas
pattern) at
conforming Unused portion
positive diffraction pattern prope es
is laboratory Idantifloatien criteria obar.sd. of fi lter Chrysotile
spaefna for (020) Molded Portion
-k @ We•. 0.77nm per line mp"4 rfie k oiog
of filter
OA3nm rpaoioa for theections.
or (l10) end (ao) refl end approa. Poru■a of filter (2mm wide) Amphibole
amphibole■: 0.53nm layer fie. repeat. subject to
IF,,
.0 spot spacing wi asaminaUoa
3A ratio of non- distance l(O.i3nm).
Layer itae repeat n Ambiguous
to laborato- • AMPHIBOLES
gD9 spectrum conforming
✓' identltleaUon observed.
criteria Amosite
F. Single Fiber (1-3 intersections = 1-3 fibers) 2emm niter Crocidolite Non —asbestos
fiber diameter apart)
Ce Bundle (>3 fiber. <1 Antho P h Ilite
c= Cluster (>3 intersections) $t'pP1Or In I. Tremolite
Ito Mattis >50 +/c.o. or m tit G.O. Y Non -Identified
NYC-WTC 000104221
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000104221Source: NYC Law Department, mirrored locally