The preliminary standard is intended to be applied to the radiochemical determination of radioactive plutonium, americium and curium in samples of biological origin, water, on glass fiber filters and of sediment and soil. To obtain good results it is necessary to have well-trained and experienced personnel. The radiochemical separation and counting of the counting sample will take at least several days.
NVN 5638-1993 history
1993NVN 5638-1993 Radioactivity measurements. Methods for radiochemical determination of plutonium, americium and curium