Environmental testing - Part 2-42: Tests - Test Kc: Sulphur dioxide test for contacts and connections (IEC 60068-2-42:2003); German version EN 60068-2-42:2003— 10 стр.
Environmental testing - Part 2-43: Tests - Test Kd: Hydrogen sulphide test for contacts and connections (IEC 60068-2-43:2003); German version EN 60068-2-43:2003— 10 стр.