Nitrogen Suppliers


IEPSA – The Leading Liquid Storage Nitrogen Suppliers

An extremely common inert gas on Earth, nitrogen contains 78 percent of the air we breathe. Known as the Joule-Thomson Effect, in order for nitrogen gas to turn to liquid, the air must be compressed, super cooled to at 63 K (−210 °C; −346 °F) and then expanded.  Colourless, odourless and tasteless with a boiling point of -196°C, liquid nitrogen is used in an increasingly wide array of applications in the medical and hospitality field that include the following:

  • Cryobiology – the branch of biology which deals with the properties of organisms and tissues at low temperatures.


  • Cryotherapy – liquid nitrogen is used for the freezing and thawing of potentially malignant skin cells such as warts, actinic keratosis and diseased tissues that include pre-cancerous spots and sun and age spots.
  • Cryogenics – the key agent used in cooling, chilling and food freezing, and also to preserve and store biological samples such as human cells, reproductive cells, blood and tissues.


  • Molecular Gastronomy – used in food preparation by chefs and ice-cream manufacturers.

Since the boiling point of nitrogen is much lower than that of oxygen, nitrogen is effortlessly distilled from the liquefied air. At this point, the nitrogen gas is recompressed and then turned back into a liquid. When appropriately insulated, it must be stored and transported in vacuum flasks and pressurised freezers which can be found at IEPSA Medical Diagnostics.


Formed in 1980, we are currently South Africa’s leading laboratory equipment and liquid storage nitrogen suppliers. As the sole agent for some of the leading diagnostic product companies at the forefront of global medical science such as ScheBo Biotech, Kreatech, MP Biomedicals, Advanced Instruments & Fiske, Irvine Scientific, Planer Products, Neogen, CDR systems, MTG Technology and Analox Sensor Technology, we are also the sole agent for leading liquid storage nitrogen suppliers such as Chart’s MVE Bio-Medical Biological Systems and Cryo Bio System.

Chart Biomedical MVE Bio-Medical Division

Chart Bio-Medical Biological Systems is the leading supplier of products for freezing, long-term storage and distribution of biological materials. Providing the latest ETERNE series - 190 liquid nitrogen vapour storage freezers that provide the highest level of sample security, we also carry the Lab Series, XC Series, SC Series, Doble Series, MVE Cryo System, MVE Cabinet Models, MVE Non Cabinet Models, MVE Eterne Series, MVE Vapour Shipper, and MVE's IATA Dewar. Also from Chart we carry freezer alarms, low level liquid alarms, cryo gloves, cryogenic aprons, oxygen monitors and instrumentation for monitoring temperatures.

Cryo Bio System

A world-wide leader in cryobiology, Cryo Bio System designs and manufactures consumables, equipment and liquid nitrogen storage systems ideal for every type of biological sample that includes blood, DNA, embryos, gametes, live cells, serum and tissues. As one of the leading liquid storage nitrogen suppliers, we supply a wide range of Cryo Bio System storage products that range from high security CBS straws, CBS Goblets and CBS Canisters.

At IEPSA Medical Diagnostics, we work closely with a team of highly trained and skilled representatives who are experts in their respective fields. Attending international exhibitions, workshops and seminars, we are renowned for keeping up with all latest and most progressive medical and food diagnostic products on the global market. As the leading liquid storage nitrogen suppliers, you are guaranteed to find exactly what you are looking for, and at the best quality and price too!

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