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Cryogenic storage and transportation systems, dewar vessels in various sizes, with low evaporation rate
MDR certified products
Powdered materials having diameters from 0.1 to 300 μm (micrometers) can be measured
with a precision of 1 mass percent over the entire size range provided three criteria are met:
- the particles must be more dense than the liquid in which they are suspended
- the particles must disperse, or break free of one another, in the liquid
- the particles must absorb more X-rays than the liquid so that adequate contrast with the liquid is created.
The last criterion generally means that the particles have atomic numbers greater than 8 (oxygen). Those composed exclusively of atomic species with atomic numbers below 8 will not absorb X-rays sufficiently and therefore are unsuitable for analysis. This category includes most organic compounds. However, particles containing elements of atomic number 8 (oxygen) and higher can be analyzed and this includes almost all inorganic compounds. A few basically organic materials that incorporate at least some higher elements from the periodic table also can be analyzed.