Recreational diving services - Requirements for training on environmental awareness for recreational divers (ISO 21417:2019); German version EN ISO 21417:2019— 14 стр.
Recreational diving services - Requirements for the training of recreational scuba divers - Part 3: Level 3 - Dive leader (ISO 24801-3:2014); German version EN ISO 24801-3:2014— 20 стр.
Recreational diving services - Requirements for the training of recreational scuba divers - Part 2: Level 2 - Autonomus diver (ISO 24801-2:2014); German version EN ISO 24801-2:2014— 22 стр.
Recreational diving services - Requirements for training on environmental awareness for recreational divers (ISO/DIS 21417:2018); German and English version prEN ISO 21417:2018
