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This certification mark applies to the ergonomics of office work chairs.
The certification mark is based on the EN 1335-1, -2 and -3 standards. These standards define the basic dimensions of office work chairs and the safety rules and test criteria applying to them. Compliance with ergonomic dimensions is verified with the help of a seat measurement device known as a “sedometer” and a harmonized and recognized test method based on sedometer test specifications issued by the Ergonomie Institut München (Ergonomics Institute of Munich) Dr. Heidinger, Dr. Jaspert & Dr. Hocke GmbH. The sedometer simulates a sitting person, facilitating analysis of the office work chair with respect to human-oriented measurements and movements.