
Respiratory protective devices — Performance requirements — Part 1: General
NORMA vydaná dňa 11.1.2021
Designation standards: ISO 17420-1:2021
Publication date standards: 11.1.2021
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: International technical standard
Kategória: Technické normy ISO