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As Per Is 1209 : 1978
This flash point and fire-point test method is a dynamic
method and depends on definite rates of temperature
increases to control the precision of the method. Its
primary use is for viscous materials having a flash
point between 79 deg C (175 deg F) and 400 deg C (752
deg F) except fuel oils, to define the hazards of
flammable and combustible materials used in shipping and
safety regulations. The temperature of the approximately
70 ml test specimen is increased rapidly at first and
then at a slower constant rate as the flash point is
approached. At specified intervals a test flame is
passed across the cup, to measure the tendency of the
test specimen to form a flammable mixture with air under
controlled laboratory conditions.
Scope :-
The flash point is the lowest liquid temperature at
which application of the flame causes the vapors of the
test specimen of the sample to ignite. To determine the
fire-point, the test is continued until the application
of the test flame causes the test specimen to ignite and
sustain burning for a minimum of 5s.
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It is an automatic flash and
fire-point tester used to examine liquid as well as
highly viscous samples in the same instrument without
any additional equipment. For substances with unknown
flash points, the APPARATUS has a special search mode
program. During the entire heating period, the test
flame is moved across the sample at suitable intervals.
The expected flash point of a specimen can thereby be
found in a time saving and economical manner.
Optional On demand :-
When examining highly
viscous specimens, a preheating time and temperature are
set in order to warm-up and liquefy the sample to
inserted temperature probe without problem. Further a
skimmer is removing the surface skin from bituminous
samples.
Standard Cup with handle, made of brass
Temperature Probe Pt-100 for sample temperature
Electric Gas Igniter with connector cable and plugs
Flame Detection Unit for the detection of flash - and
fire-points Flame
Arrest Cover for extinguishing the fire in the cup |
