Welding - Electron and laser-beam welded joints - Guidance on quality levels for imperfections - Part 1: Steel, nickel, titanium and their alloys (ISO/DIS 13919-1:2018); German and English version prEN ISO 13919-1:2018
Feather and down - Test methods - Determination of the quantitative composition of feather and down (manual method); German version EN 12131:1998— 5 стр.
Feather and down - Test methods - Determination of the quantitative composition of feather and down (manual method); German and English version prEN 12131:2017
Feather and down - Test methods - Determination of the quantitative composition of feather and down (manual method); German version EN 12131:1998— 5 стр.
