UNE-EN IEC 60974-14:2018 Arc welding equipment - Part 14: Calibration, validation and consistency testing (Endorsed by Asociación Española de Normalización in January of 2019.)
2022UNE-EN IEC 60974-14:2018/AC:2022-02 Arc welding equipment - Part 14: Calibration, validation and consistency testing (Endorsed by Asociación Española de Normalización in March of 2022.)
2019UNE-EN IEC 60974-14:2018 Arc welding equipment - Part 14: Calibration, validation and consistency testing (Endorsed by Asociación Española de Normalización in January of 2019.)