
Recreational diving services - Requirements for training on environmental awareness for recreational divers (ISO 21417:2019)
NORMA vydaná dňa 24.6.2020
Designation standards: UNE-EN ISO 21417:2020
Publication date standards: 24.6.2020
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE