TEM ANALYSIS
ATC ASSOCIATES INC. -
01
LAB GROUP #• 5162 - 10 25
operator
Filter Type MCE 25 mm
Lab Sample No. 62224
385
Filter Area m m"2
Client Spl. No. 10 J v Disk No.
Grid I.D. Comments
Instrument I.D. EM 10 CRX 0.0
(GO) Area ruct. Corspd to
16 400X , 4 172 St
Screen Magnification Analyzed 6
No. GO to be
Acc. Voltage 80 kV EDS
Nor✓
I.D. of Structure (Nonasb.
Length
g
Structure structure Type Ambig./ ND Elements
GO. 3o•5 um , 5um Chr s. Am hibole Nonasb.
No Coord. No. F B C M < 5 um
( Z /'— '
F
—
6 /l? —v
I
I
I
I
I
H t ----ii iii!U 'I-
Check autrsu.+...• •-•
-
at 4)
asbestos- identify all stand a u° Ce ~S
st ructures u ~Oa 1~m
Photo No. from 1 in 5 0 to S
containing samples) <50% undplssolve r. over apps or o e
coverage >50% d veragesquares
Aspect 0510 <10% particulate overlapped grid
Struct• _ > 0.5um & > 5:1 F B C M
diffraction pattern) at least 20 unfolded or
<Si halve or opaque area!
N= Not Observed (SOS spectrum or
properties conforming Portion
positive diffraction pattern
V= to laboratory identification criteria
observed. of filter Chrysotile
a cintfinsfor (020) rflecUon.. Avoided portion
Per abrywtlls: 0.77nm the Layer repeat, .I eaalag of filler
O.s7nm .paoiet for Partien of rester (2mm vide) Amphibole
of (110) and (170) r eflections. repeat. and approl. Lion of to
m layer ling
For amphlboin : 0.57o 1570F line spot .Wetng es•a, ation
ratio of non—lslnned
di.taene (0.07nm1•
lger line repeal Ambiguous
AMPHIBOLES
trum conforming to laboratory
✓= LDS • lcsuen criteria observed. Amoslte
identi
3.5 nben) 25mm niter Crocidolite Non -asbestos
-= Single Fiber (1-3 Intersections = 1-3
fiber diameter apart) Anthophyllite
s= Bundle S>7 fibers <1 etepplfe Rules: T-"
NYC-WTC 000104102
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000104102Source: NYC Law Department, mirrored locally
Laboratory report containing transmission electron microscopy data and images for asbestos fiber identification from samples analyzed in September 2001.