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Accurate measurements

Noble gases are used in several important industrial applications such as lighting, welding and space exploration. The range of noble gas standards provided by NPL is shown below.

Component Matrix gas Amount fraction range from Amount fraction range to
Helium Nitrogen, air or oxygen 500 nmol/mol 500 μmol/mol
Neon Nitrogen, air or oxygen 500 nmol/mol 500 μmol/mol
Argon Nitrogen 500 nmol/mol 500 μmol/mol
Krypton Nitrogen, air or oxygen 500 nmol/mol 500 μmol/mol

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