DIN EN 13138-3:2021-12 Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats into which a user is positioned; German version EN 13138-3:2021
2021DIN EN 13138-3:2021 Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats into which a user is positioned; German version EN 13138-3:2021
2020DIN EN 13138-3:2020 Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats to be worn; German and English version prEN 13138-3:2020
2015DIN EN 13138-3:2015 Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats to be worn; German version EN 13138-3:2014