(Art. 2 para. 1 let. k, 10 let. f, 168 para. 2 let. a and 169 para. 1)
NORM Clearance limits for naturally occurring radionuclides in solid materials which are in full or partial secular equilibrium with their progeny: – Natural radionuclides from the U-238 series 1 000 Bq/kg – Natural radionuclides from the Th-232 series 1 000 Bq/kg – K-40 10 000 Bq/kg
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