Rubber Testing Technologies - QUALITEST – WorldofTest.com

Aging Ovens
www.WorldofTest.com/blockoven.htm
Cabinet Aging Oven - EB Series
Cabinet Aging Oven - EB Series
for precision aging of rubbers and
plastics under controlled conditions.
EB 04 and EB 10 are shelf ovens
and conform to ISO 188, ISO 3383,
IEC 811 and technical equivalent
standards. They designed to give very
low temperature variations in time and
space, low air speed and controlled
air exchange rate. This is achieved
by using an inner chamber with a
controlled air flow.
Cabinet Ovens are ideal for aging
finished products and large test pieces
which are unsuitable for cell ovens.
Both shelves and rods are supplied
with the oven for accommodating
most types of samples.
EB 04 is equipped with air pump and
a flowmeter while EB 10 is a budget
version where this is replaced by a
factory set throttle to give a fixed air
exchange rate of changes per hour.
The Ovens can be supplied with a 3
glass window, illumination of the inner
chamber and separate systems for
temperature control and indication
with alarm. The ovens are supplied in
two sizes, with 60 and 120 Lt. useful
volume. Cabinet Oven EB 04-II with
air supply that requires external air and
flow meter that can be set between
3-20 changes per hour. Cabinet Oven
EB 04, excellent temperature stability
and distribution is achieved by using
an inner chamber with a controlled air
flow.
Cell Aging Oven - EB Series
The Cell Aging Oven - EB Series are
designed for aging tests according
ASTM D 865 Rubber-Deterioration by
Heating in Air (Test Tube Enclosure).
The ovens can also be used for
testing in liquids according to ASTM
D 471 Effect of liquids. Cell ovens
and cabinet aging ovens perform well
inside the apparatus requirements
in ISO 188, IEC 811 and other
equivalent standards.
Qualitest manufactures a range of
aging ovens for precision aging of
rubbers and plastics under controlled
conditions. All ovens conform to ISO
188, IEC 811 and other technical
equivalent standards. The ovens are
designed to give very low temperature
variations in time and space, low
or high air speed and controlled air
exchange rate.
Good control of temperature, air
speed and air exchange rate have
been shown to be very important
to achieve good repeatability and
reproducibility when doing heat
aging tests of polymer materials. Our
research shows that the air speed is a
very important factor, influencing the
aging results by increased evaporation
of softeners and antioxidants and
by increased oxidation at higher air
speeds. Qualitest aging ovens have
a low air speed, dependant of the air
exchange rate only, or specified high
air speed (1m/s) to allow tests to be
performed investigating the influence
of air speed.
Test Tube Aging Oven - EB Series
The Test Tube Aging Oven - EB Series are designed
for aging tests according to ASTM D 865 Rubber-
Deterioration by Heating in Air (Test Tube Enclosure).
The ovens can also be used for testing in liquids
according to ASTM D 471 and ISO 1817 Effect of
liquids. Glass tubes for both standards are included.
Common specifications:
• The ovens perform well inside the apparatus
requirements in ASTM D865, ASTM D471 and
ISO1817 (EB 11, EB 14).
• The casing consists of steel, painted with powder
paint in bluegreen colour.
• Temperature controller with 0.1°C set point.
• Solid state relay for safe control.
• Temperature indicator with sensor in one test tube
(EB 11), three test tubes (EB 14).
Monitoring oven temperatures
EC 11 is a data monitoring software monitoring
instruments such as ovens and laboratories for
temperature and humidity. In the software it is
possible to set alarm limits. The software has three
main windows, one to see actual temperature
values and corresponding curves, one for
comparing historical data and one for setting the
communication with the amplifiers.
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