ETL SEMKO is a part of Intertek Testing Services Ltd., the company is the world's largest product and commodities testing organization in North America, Europe, Asia, 93 countries, has 240 laboratories, 469 offices. ETL SEMKO provides product safety testing and certification, EMC testing, product performance testing, while providing such as medical, HVAC, appliances, telecommunications, aerospace, automation, semiconductor, building materials, energy generation system and other sectors of quality management systems registration. Any electrical, mechanical or electromechanical products as long as the tests with the ETL mark to indicate that it is tested in line with the relevant industry standards. Each industry has different testing standards, so a specific product requirements must be accountable to professional advice. ETL test marks widely used in cable products that passed the test.
