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"Concentration standard deviation of ammonium {NH4+ CAS 14798-03-9} per unit volume of the atmosphere [aerosol >1um phase]"@en .
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"The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement."@en .
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"NH4+_aerosol_>1um_SD" .
"SDN:P01::CAM88218" .
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"accepted"@en .
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