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| Petroleum Testing |
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A whole selection of
petroleum test equipment to ASTM standards. |
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Portable Octane
analysers |
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Chlorine analysers
& Sulfur analysers |
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| Cement/Core PVT
Testing |
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Core analysis,
petrophysics & rock mechanicss |
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PVT, porrositmeters,
cement testing equipments |
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Core flood analysis
equipments |
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| Refinery analysers |
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Specialising in on-line
analytical instrumentation for oil, gasindustries s |
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| Scientific
Equipment |
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Specialising in high precision viscometers, rheometers and
other scientific instruments |
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Various specialist gas
generators |
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UV spectrophotometers/
Microwave digestion/ spectrometers |
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| Building
products |
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Middle East agents for
bricks and paviours |
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| Publications |
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Global magazine/ periodical subscription
service |
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| Health and
safety |
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Back supports |
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Mindex Ltd back support reduce back injury in the
workplace |
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| Petrochemicals |
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Chemical marker for petroleum based
products. |
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Following interest from several medical researchers in modified Ferranti
Shirley Viscometers Ravenfield have moved into the biomedical field. Our
first instrument is the Model EM Shear Generator..
Model EM This
unique instrument uses a novel geometry. By suitable means, the instrument
provides a shear regime that varies very little and considerably less than the
potential error in many cone and plate instruments. The geometry allows
absolute calibration of shear rate. |
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This is particularly valuable because firstly the rate of shear is almost
constant throughout the sample and regimes can be varied at will to accommodate
different sizes of particle (cell). Experiment soon determined that not only
was the medium retained at remarkably high rates of shear, but that a new
possibility was created. It has proved possible to insert thin tubes through
the lower plate which can be used for the insertion and extraction of fluids
while the sample is being sheared. Further, the use of glass or plastic for
both sample contacting surfaces allows us not only to view the operation, but
also to add optical observation instrumentation.
The optical
options can include addition of a microscope, high speed camera and flash
facilities. An aggregometer and/or fluorimeter can also be integrated with the
optical system. For improved bio-compatibility we can now offer the option of
methacrylate coated geometries while still retaining the optical observation
facilities. The standard Model EM Shear Generator consists of the transparent
rotor system with a speed and temperature controller.
Many options
are available and we have already supplied a Shear Generator with
epi-fluorescence observation and an aggregometer built-in AND with the
possibility of the pumped circulation of the sample as well..
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