Monthly Archives: December 2012

28 Dec

Fecal Occult Blood

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Fecal occult blood refers to blood in the feces that is not visible.  A fecal occult blood test checks for hidden blood in the stool however newer tests look for globin, DNA, or other blood factors including transferrin.  Conventional stool … Continue reading

24 Dec

Where to get Liquid Nitrogen

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Where can you buy liquid nitrogen? Your local welding supply should have LN2, or an industrial gas supplier. You must use the proper dewar to transport the liquid nitrogen. A dewar is different from a thermos because it is designed … Continue reading

17 Dec

Clean Room

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Modular clean rooms solve the problem of adding a clean room environment to an existing facility.  The air supply is filtered through HEPA filter or ULPA filter  fan units.  ISO Class 8 to ISO Class 3 cleanliness levels are possible … Continue reading

13 Dec


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Cryo – Low Temperature Gloves  Anyone who is familiar with the handling of cryogenic liquids is probably aware of the potential  hazards involved with working with these materials and should hopefully be trained in how to handle them safely. It is highly recommended that emergency procedures be established and … Continue reading

10 Dec


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An osmometer measures the osmolality of solutions using freezing point depression.  Osmolality is the measure of constituents in solution – solutes.  Units for osmolality are Osm/kg or osmoles/kilogram.  An osmole can be the same as 1 mole as in glucose … Continue reading

06 Dec

Gast Vacuum – Pressure Pumps

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GAST Vacuum – Pressure Pump is an extremely quiet, oiless workhorse of a pump, which can be used for may applications.  Granted, there are lots of pumps in the market, but the DOA series has been proven to be a top … Continue reading

03 Dec


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Conductivity of water is the measurement of the amount of dissolved charge carrying particles in water.  A conductivity meter and conductivity cell are used to carry out this measurement.  Conductivity is important in rivers, lakes, and ocean environments as well … Continue reading