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activity ratio

activity ratio, Total:3 items.

In the international standard classification, activity ratio involves: Geology. Meteorology. Hydrology, Mining and quarrying.

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, activity ratio

• GB/T 13072-1991 Method for measuring the activity ratios of Ra226 to Ra228 in geological water samples
• GB/T 13072-2010 Geological water samples.Determination of radioactive ratios Ra/Ra.Emanation-β counting techniques
• GB/T 13071-2010 Geological waters samples.Determination of radioactive ratios U/U and Th/Th.Extraction chromatograph and alpha spectrometry measure

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