IEC 60512-9-2:2011-Connectors for electronic equipment-Tests and measurements-Part 9-2: Endurance tests-Test 9b: Electrical load and temperature, IEC 60335-2-74:2002+AMD1:2006+AMD2:2009 CSV-Household and similar electrical appliances-Safety-Part 2-74: Particular requirements for portable immersion heaters, IEC 60107-3:1988/AMD1:1999-Amendment 1-Rec