DIN 38414-15 E:2017-12 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)
1970DIN 38414-15 E:2017-12 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)
1990DIN 38414-15:1990 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)