2017IEC 60335-2-102:2017 Household and similar electrical appliances - Safety - Part 2-8: Particular requirements for shavers, hair clippers and similar appliances
LST EN ISO 21670:2004 Hexagon weld nuts with flange (ISO 21670:2003) was changed to IEC 60335-2-102:2017 Household and similar electrical appliances - Safety - Part 2-8: Particular requirements for shavers, hair clippers and similar appliances.