title: Difficulties in measuring the maximum permissible levels of surface contamination for radionuclides that decay primarily by electron capture.
mesh_terms: D002859:Chromium Isotopes; D006283:Health Physics; D007456:Iodine Isotopes; D008345:Manganese; D008452:Maximum Allowable Concentration; D011482:Protective Devices / Q000592:standards; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011868:Radioisotopes; D015033:Zinc Isotopes
chemical_list: D002859:Chromium Isotopes; D007456:Iodine Isotopes; D011868:Radioisotopes; D015033:Zinc Isotopes; D008345:Manganese