Chemicals used for treatment of water intended for human consumption - Sodium chloride for on site electrochlorination using membrane cells; German version EN 16370:2013— 28 стр.
Recreational diving services - Requirements for the training of scuba instructors - Part 2: Level 2 (ISO/DIS 24802-2:2012); German version prEN ISO 24802-2:2012
Chemicals used for treatment of water intended for human consumption - Sodium chloride for on site electrochlorination using membrane cells; German version prEN 16370:2011
Drinking water supply from small units and non stationary plants - Part 2: Non stationary units - Guidelines for drinking water, planning, construction, operation and maintenance of units— 40 стр.
