NF M60-800:2004 Nuclear energy - Measurement of environmental radioactivity - Water - Measurement of global beta activity index in terms of strontium 90 and yttrium 90 equivalent in low salted water.
2010NF M60-819:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method.
2004NF M60-800:2004 Nuclear energy - Measurement of environmental radioactivity - Water - Measurement of global beta activity index in terms of strontium 90 and yttrium 90 equivalent in low salted water.
1997NF M60-800:1997 Nuclear energy. Measurement of environmental radioactivity. Water. Measurement of global beta activity index in terms of strontrium and yttrium 90 equivalent in low salted water.