GB/T 6224.4-1986

Test method for airflow resistance of respiration of filtering particle respirator

NORMA vydaná dňa 9.4.1986

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The information about the standard:

Designation standards: GB/T 6224.4-1986
Note: NEPLATNÁ
Publication date standards: 9.4.1986
Country: Chinese technical standard
Kategória: Technické normy GB