GB/T 6224.4-1986 in English
SUPERSEDEDTest method for airflow resistance of respiration of filtering particle respirator
- Issued on:1986-04-09
- Implemented on:1986-01-02
- File Format:PDF
- Delivery:Via email within 1~3 business days
$175.00
《GB/T 6224.4-1986过滤式防微粒口罩对空气流呼吸阻力的试验方法》由TC112(全国个体防护装备标准化技术委员会)归口,主管部门为应急管理部。
Scope
This method is used to determine the inhalation and exhalation resistance of anti-particulate masks under specified conditions. During the test, the mask is worn on the experimental head shape, and the air with a steady flow rate is passed through the mask. The negative pressure formed by pumping air is the inhalation resistance of the mask, and the positive pressure formed by blowing air is the exhalation resistance. The result is Pa (mmH2O) said.

Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-

GB 23394-2024 in English
Respiratory protection—Positive pressure self-contained closed-circuit compressed oxygen breathing apparatus
2024-12-31 -

GB 42302-2022 in English
Respiratory protection—Non-powered air-purifying respirators for escape
2022-12-29