ASTM F3502-21

Standard Specification for Barrier Face Coverings

NORMA vydaná dňa 15.2.2021

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The information about the standard:

Designation standards: ASTM F3502-21
Note: NEPLATNÁ
Publication date standards: 15.2.2021
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: American technical standard
Kategória: Technické normy ASTM

Annotation of standard text ASTM F3502-21 :

Keywords:
airflow resistance, barrier face coverings, breathing resistance, leakage assessment, sub-micron filtration efficiency,, ICS Number Code 13.340.30 (Respiratory protective devices)