-Amerika, Canada- cTUVus&ETL
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Amerika Leboea- cTUVus&ETL
▍Selelekela The Occupational Safety and Health Administration (OSHA) tlas'a Lefapha la Basebetsi la United States e hloka hore lihlahisoa tse sebelisoang mosebetsing li hlahlojoe le ho netefatsoa ke laboratori e tsebahalang naheng eohle pele li ka rekisoa 'marakeng. Litekanyetso tsa liteko tse sebelisoang li kenyelletsa American National Standards Institute (ANSI); Mokhatlo oa Amerika oa Teko le Lisebelisoa (ASTM); Underwriters Laboratory (UL); le maemo a mokhatlo oa lipatlisiso bakeng sa kananelo ea lifeme. ▍Tlhahlobo ea...