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— 63 стр.
Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats to be worn; German version EN 13138-3:2014— 50 стр.
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
Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats to be worn; German version EN 13138-3:2014— 50 стр.
