IEC 60335-2-87:2016/AMD1:2018-Amendement 1-Household and similar electrical appliances-Safety-Part 2-87: Particular requirements for electrical animal stunning equipment, IEC TS 62933-3-1:2018-Electrical energy storage (EES) systems-Part 3-1: Planning and performance assessment of electrical energy storage systems-General specification, IEC TR 6185