Safety devices against flashback and backflow for gas welding equipments; requirements, testing and quality supervision
STANDARD published on 1.12.1981
Designation standards: ÖNORM M7850
Note: WITHDRAWN
Publication date standards: 1.12.1981
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM