英文题名:German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the specific residual beta activity in sludge, sediment and suspended matter (S 15)
The standard describes a chemical-physical method for the determination of the specific residual beta activity in sludge, sediment and suspended loud. Therefor the pulverizid residue of the sample is to measure with a suitable counter instrument.#,,#