AS/NZS IEC 61331.1:2022 adopts IEC 61331 1:2014 (ED.2.0), which specifies requirements for materials in sheet form used for the manufacturing of protective devices against X-radiation of radiation qualities generated with X-ray tube voltages up to 400 kV and gamma radiation emitted by radionuclides with photon energies up to 1,3 MeV.