NS-EN ISO 3581:2012 Welding consumables — Covered electrodes for manual metal arc welding of stainless and heat-resisting steels — Classification (ISO 3581:2003+Cor 1:2008+Amd 1:2011)
2016NS-EN ISO 3581:2016 Welding consumables - Covered electrodes for manual metal arc welding of stainless and heat-resisting steels - Classification (ISO 3581:2016, Corrected version 2017-11-01)
2012NS-EN ISO 3581:2012 Welding consumables — Covered electrodes for manual metal arc welding of stainless and heat-resisting steels — Classification (ISO 3581:2003+Cor 1:2008+Amd 1:2011)