[Radioactivity standards for construction materials].
D003252:Construction Materials / Q000592:standards*; D011835:Radiation Protection / Q000592:standards*; D011851:Radioactivity; D011868:Radioisotopes; D012449:Safety; D014586:USSR
D011868:Radioisotopes
Normirovanie radioaktivnosti stroitel'nykh materialov.