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ELECTRIC PENSKY MARTENS TESTER (K16200)
(ASTM D93 and API 510)
INSTRUCTIONS FOR USE
Thoroughly clean and dry all parts of the cup and its accessories
before starting the test.
Particular care should be taken to avoid
the presence of any gasoline or naptha used to clean the apparatus
after a previous test.
Fill the cup with the oil to be tested up to the level indicated by
the filling mark.
Place the lid on the cup and set the latter in the stove.
Take care
to have the locating devices properly engaged.
Insert the thermometer.
If it is known
220°F., the “P.M. High” thermometer may
preferable to start with the “P.M. Low”
in case a temperature of 220 to 230°F.
Liqht the test flame and adjust by means
that the oil will flash above
be selected; otherwise it is
thermometer, and then change
is reached.
of the valve screw on the
burner block, so that it is 5/32” diameter, the same size as the bead
provided for comparison.
Connect the instrument to the proper source of electric current, with
the electrical cord provided.
Adjust the supply of heat by adjusting the
the temperature reading on the thermometer
9°, nor more than 11°F., per minute.
Connect the stirrer to the stirrer motor.
dial on the powerstat until
increases by not less than
NOTE :
Use receptacle in
base of powertrol heater and place switch to ON.
Apply the test flame at each temperature reading, which is a multiple
of 2°F., Up to 220°F.
For the temperature range above 220°F., apply
the test flame at each temperature reading which is a multiple of 5°F.
Apply the test flame by operating the knurled hand knob controlling the
shutter and test flame burner, so that the flame is lowered in one-half
second, left in its lowered position for one second, and quickly raised
to its high position.
Discontinue stirring during the application of
the test flame.
10. Record as the flash point the temperature read on the thermometer at
the time of the flame application that causes a distinct flash in the
interior of the cup.
The true flash must not be confused with the blu-
ish halo that sometimes surrounds the test flame for the applications
preceding the one that causes the actual flash.
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