GB/T 6224.4-1986

Test method for airflow resistance of respiration of filtering particle respirator

NORM herausgegeben am 9.4.1986

The information about the standard:

Designation standards: GB/T 6224.4-1986
Note: UNGÜLTIG
Publication date standards: 9.4.1986
Country: Chinese technical standard
Kategorie: Technische Normen GB