Equipment use:

It is suitable for the determination of gas exchange pressure difference of medical surgical masks, and can also be used to determine the gas exchange pressure difference of other textile materials.

Instrument characteristics:

1. The suction air source is used as the power source of the instrument, which is not limited by the space of the test site;

2. Equipped with high-precision differential pressure sensor, digital display on both sides of the sample pressure difference;

3. Special sample clamp to ensure the firm grip of the sample.

Technical indicators:

1. Air source: suction type;

2. Air flow: 8L/min;

3. Sealing method: end seal;

4. Sample permeability diameter: 25mm;

5. Pressure difference sensor range: 0 ~ 500Pa;

6. Display mode: digital display pressure difference;

7. Power supply: AC220V, 50Hz.

Applicable standards:

YY 0469-2011 Surgical masks for medical purposes

YY 0969-2013 Disposable medical masks

EN 14683:2014 Medical face masks -Requirements and test methods