BS EN IEC 60601-2-83:2020+A11:2021 Medical electrical equipment. Particular requirements for the basic safety and essential performance of hearing aids and hearing aid systems
1970BS EN IEC 60601-2-83:2020+A11:2021 Medical electrical equipment. Particular requirements for the basic safety and essential performance of hearing aids and hearing aid systems
2020BS EN IEC 60601-2-83:2020 Medical electrical equipment. Particular requirements for the basic safety and essential performance of home light therapy equipment