8/18/2019 Cannon Fenske Viscometer
1/3
lnstructions
or
the
use
of
The
Cannon-Fenske
paque
Reverse-Flow)
iscometer
See
lsoASTM
D
445.D 170. 446and SO
3105
1. Clean
he
viscometer
singsuitable
olvents, nddry by
passing
lean,dry, ilteredai r
through
he nstrument o remove
he final tracesof
solvents.
Periodically, races f
N
organicdeposits hould e
removed
with chromicacid or non-chromium
leaning
solution.
|
2. If there
s a
possibility
f lint, dust,or other
solidmaterial n the iquid
sample,
ilter
he
L
sample
hrougha fritted
glass
ilter or fine mesh
screen.
To charge
he sample
nto
the
viscometer, nvert he nstrumentand apply
suction
o
tube
L, immersing
ube
N
in the iquid sample,and draw liquid to mark G.
Wipe
cleanarm
N,
and tum the
nstrument o its normal
vertical
position.
Place he
viscometer nto the holder,and nsert t into the constant
emperature ath.
A
viscometerholder
which fits
the Cannon-Fenske
outine
viscometer
and he Cannon-
Manning Semi-Micro
viscometerwill
also it the Cannon-Fenske paque
viscometer.
Align the viscometer
ertically n the
bath
by meansof a small
plumb
bob
in
tubeL, if
a
self-aligning
olderhasnot beenused.
Allow sample
o flow throughcapillary ube
R and approximately
alf-fillbulb A,
stopping he
meniscus n bulb B
by
placing
ubberstopper n tubeN.
Allow approximately
0 minutes or the
sample
o come o bath emperature t
40"C
and
15
minutesat 100oC.Make sure he meniscus n
bulb
B does
not reach ine E.
Remove he rubberstopper
nd
allow
the meniscus
o
travel upwards nto bulbs C and
D.
Using
two clocks,
measurehe efflux times or the meniscus o
pass
rom mark E to mark
F, and
from mark F to mark I.
Calculate
he
kinematicviscosity
of the sampleby multiplying
the efflux time in
seconds
for
eachbulb by
the
viscometer
onstant or
eachbulb.
e. Repeatmeasurement anbe
made
by repeating teps thru 8.
a
1
4.
5 .
6.
7.
8 .
I
J
F
c
E
A
Cannon-Fenske
Reverse-Flow)
Viscometer or
Opaque
and
TransparentLiquids
RECOMMENDED
ISCOSITY ANGES OR
THE
CANNON-FENSKE
PAQUE
ISCOMETERS
Kinematic
Viscosity
Range
mm
t/s
,
lcst/s;
mm
t/s,
(cSt)
0.002
0.004
0.008
0.015
0.035
0 . 1
0.25
0.s
t . 2
2.5
8
20
45
100
Size
25
50
75
100
1 5 0
200
30 0
3s0
400
450
500
600
650
700
0.5
0.8
1 . 6
J
7
20
50
100
240
s00
1600
4000
9000
20000
t o 2
t o 4
t o 8
to
15
to
35
to 100
to 250
to
500
to
1200
to
2500
to 8000
to 20000
to 45000
to 100000
The expanded ncertainty'with 95% confidence f the
calibration
measurementselative o the
primary
standard
s as ollows:
Range
of
Viscosity
Combined Expanded
mm'/s
< 1 0
l0
-
100
100 1000
1000 10000
10000 100000
Uncertainty
0.16%
0.22%
0.29%
0.38%
0.44%
The assigned uncertainty
of
the
primary viscosity
standard
at 20oC
is
f
0.17%. See SO 3666.
'
An expanded ncertaintyU is determined y multiplying
the combined
standard
uncertainly u. by a coverage
bctor k:
U
:
kt4,
where k
=
2. See
NIST Technical
Note 1297,1994edition,
Guidelines
br
Evoluating
and
Expressing
he
Uncertainty of I'llST uteusuremenlResults.
THISPRODUCT AS
CALIBRATED
WITHINA
QUALITY
SYSTEMWHICH S
REGISTEREDO
SO9001:2000.
CANNON NSTRUMENTCOMPANY
P 10 .0103
STATE
COLLEGE, A I6803
0204zoo+
8/18/2019 Cannon Fenske Viscometer
2/3
Gp.gp1,1y,,op-
ertificatef Cali
ration
Viscometer No.
'iutt
935,\
1262.01
rhe nctusionf
he 2LA-^9:
:::
cANNON-FENSKE
REVERSE
Low) TypE
FoR
opAeuE LIeurDS
not mply
ertficationtpproval
f
the
rocrttcts
aribrated
r ested.
(Standard
est ASTM D 445
nd3104)
Viscometer
Constant
at 40"C
ViscometerConstant t 100"C
Certificate
1262.011
Constant, *t/st,
(cSt/s)
C D
0.2391 { ) . 735
0.2409 0. 7J8
The
viscometerconstant
at other
emperatures
an be obtainedby interpolation r extrapolation.
To obtain kinematicviscos
mmt/s
(cSt)
multiply the efflux
time in
seconds
y the
viscometer
onstant.To
obtain
viscosity
n mPa.s
cP),
multiply the
viscosity n mm2/s
cSt)
by the density n
gramsper
milliliter.
The
aboveconstants ssume value
or the coefficientof thermalexpansion ypical o that o r
mineral
oil, and hat
the visco
was filled w ith test sampleat room
temperature.
f
the
filling
temperature
e s
substantially iffe rent han room
temperaturt
viscometer onstant
at test
emperahue
1
is
C"
(l
+
B
[Tt
-
Tr]). The valuesof
Co
and
B shown
below
are
basedon
a coeff
thermal
expansion
ypical
t0 that or
a mineral oil.
Kinematic
viscositiesof the
standards sed n calibrating
were
established
n
Master
Viscometers
s describedn Ind. Eng. C
Anal. Ed. 16,708(1944), STM D2162,and he Joumalof Research f
theNationalBureauof Standards, ol. 52,No. 3, Mi
Research aper2479. Kinematic
viscositiesare basedon the
primary
viscosity
standard,
ater,
at20"C
(ITS-90).
The inten
accepted alue or
the viscosity
f water
at
20oC
ITS-90)
s 1.0016mPa.s
r
kinematic iscosity
s 1.0034mm2/s s isted r
3666.
The
gravitational
constant,
,
is 980.1 cm/sec2 t the
Cannon
nstrumentCompany. The
gravitational
onstant
aries
0.1%
n the
United States.To make
his small
correction n the viscometer onstant,
multiply the aboveviscometer onstant
factor
[g
(at
your laboratory)
980.1]. The calibrationdatabelow are raceableo
the
National
nstitute or
Standards
nd Te
Temperaturemeasurement
raceableo NIST
(SPRT
Test No.
available).
CALIBRATION DATA AT
4OOC
Constant, mt/s2,
cSt/s)
C D
0.2t92 0. 731
0.23e5
0. l716
R.E.
Manning,PhD, P.E.
K.O. Henderson M.T. Zubler
Cannon
nstrument
Co.
State
ollege, A 16803, SA
www.cannoninstrument.com
' l ' e
s t No. :
| 100- l l
The S.I.unit
of
kinematic iscosity s 1 metersquared
er
second,
nd s equal o 104
tokes. he
S.I.unit of
viscosity s
I
pa
second,
nd s equal o l0
poises.
One
centistokes
s
equal
o onemillimeter
squared
er
second.
Viscosity
Standard
t6{ )
I 0 0
Kinematic Viscosity
mmt/s.
cst)
67.66
| 2 l i .0
Efflux ime,
Seconds
C D
282.87
390.19
51J.35
717. 8
Average:
0'2391
Co
0' l l t l9
cm
for
D. B
:
ll)9
cm for D.
o/o
for D higher
han at 40'C.
Room Temp.
approx.)
2-1
oc.
Charge
approx.)
l l . l J
m l .
Driving fluid head
approx.)
l5.l
Working diameterof upper eservoir
2.6
Constant
t
100'C. is
0.65
Calibrated v
lt)l l l orr
I l l l2l01
0. 735
r ) .
7 l
l l t t
x l0-6/oC,m
or
C,
I
. l
cm orC,
2. u
o/o
for
C,
0.77
undersupervision f
Please nr'rte: his
cali trratirrrt
ertraius
alid
tbl ' 10
1,ent'.-
utless
(l)
the I' i ;-col l tetel tas
been
danragederr
l)
uratel ials
u{rich
cheuicallv attack trolosi l icate
glass
(e
9..
n'cholluoric acicl
rrl
highll'
alkaline
srrltttitrru-)
hove
beerr
used. Nonetheler-s. it is recrruuuert clecl
hat
the
calibraticru be
velitied
n'ith
li.iueuratic
r.isct'rsit1'stanclalrls
pa'iodicalll':
if
a change
iu
caliblatiou is
incl icatecl.
caletirl l l '
esanrine
all scrurces -f enor. incltrdiug
especial lv
teurllelattu'e ll€fl::-ul'€nl€nt ince nrr-rst pparort change*
irt
calitrlatiern ctf the
r.'iscc-rrttetel
re
(hle
tr) en't'rr itt
tot4ra'ntttre
lltear-uf€llr€llt.
Thrs certificate shall not
be reproduced
except in full,
without
the
written approval of Cannon Instrument Company
ACCREDITED
P 1 0 1 0 3
@zooa
