Standard Specification for Barrier Face Coverings
NORMA vydána dne 1.6.2022
Designation standards: ASTM F3502-22
Note: NEPLATNÁ
Publication date standards: 1.6.2022
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
Keywords:
airflow resistance, barrier face coverings, breathing resistance, leakage assessment, sub-micron filtration efficiency,, ICS Number Code 13.340.30 (Respiratory protective devices)