DIN EN 13138-4 E:2014-09 Buoyant aids for swimming instruction - Part 4: In water performance, requirements and test procedures for Class B swimming devices
2018DIN EN 13138-4:2018-02 Buoyant aids for swimming instruction - Part 4: In water performance, requirements and test procedures for Class B swimming devices; German and English version prEN 13138-4:2018 / Note: Date of issue 2018-01-12*Applies in conjunction with DIN EN 13138-...
2018DIN EN 13138-4:2018 Buoyant aids for swimming instruction - Part 4: In water performance, requirements and test procedures for Class B swimming devices; German and English version prEN 13138-4:2018
1970DIN EN 13138-4 E:2014-09 Buoyant aids for swimming instruction - Part 4: In water performance, requirements and test procedures for Class B swimming devices