GB/T 40353-2021
Air filter paper
GB/T 25435-2010
Fine filtration board
GB/T 25437-2010
Coarse filtration board
DB50/T 579-2015
GB/T 2679.14-1996
Filter paper and filterboard--Determinationof maximum pore diameter
EJ/T 369-1989
20240225-T-607
Filtration board for food processing
\u0413\u041e\u0421\u0422 20358-78
Air-filtering paper. Specifications
\u0413\u041e\u0421\u0422 21956-88
Filter paper and board. Method for determination of leak-tightness
\u0413\u041e\u0421\u0422 25099-82
Filter paper and board. Method for the determination of airflow resistance