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EN14683-2019 anex C Medical Face Masks Gas Exchange Pressure Difference Detector EN14683-2019
Medical Face Masks Tester overview:
The mask gas exchange pressure difference tester (gas exchange pressure difference tester) is based on the test principle of the standard YY0469-2011 "Technical Requirements for Medical Surgical Masks". The test item is equipped with a special tooling device to achieve the test tightness of the product. It is mainly applicable to the measurement of the gas exchange pressure difference of medical surgical masks / mask woven fabrics. It can also be used to determine the gas exchange pressure difference of other textile materials.
Standards:
EN14683-2019 anex C , ASTMF2100-19, MIL-M-36954C.
Test principle:
- The vacuum pump is used to realize the power source of the test product;Use tooling fixture to achieve internal and external pressure measurement of the product, built-in differential pressure sensor;The case is in the form of an all-in-one machine with a built-in vacuum pump and digital display meter to achieve automatic pressure detection and automatic display;Equipped with a special tooling fixture, which is convenient for clamping and testing products;
- A device which measures the differential pressure required to draw air through a measured surface area at a constant air flow rate is used to measure the air exchange pressure of the medical face mask material, as show in Figure C.1. A water-filled (or digital) differential manometer is used to measure the differential pressure. A mass flow meter is used for measurement of the airflow. An electric vacuum pump draws air through the test apparatus and a needle valve is used to adjust the airflow rate.
Technical ParametersTest power source:
The principle of negative pressure : vacuum test
Temperature range: room temperature
Maximum pressure regulation: 20kpa
Sealing method: O-ring seal;
Differential pressure sensor range: 0 ～ 500pa;
Display mode: Digital display pressure difference;
Air flow | 8L / min |
Sensor accuracy | 0.5% |
Machine weight | 25kg |
Sample breathable caliber | Ф25.4mm |
Power supply | 220V, 50Hz |
About daxian company:
DAXIAN's testing equipment are widely used in various field:
scientific institutions, colleges, inspection institutions, auto
parts, electronics, electricals, LED, photoelectricity, mobile,
plasticand rubber, telecommunication, chemical industry, aerospace,
building material and product, wire and cable,textile and fabrix,
etc. All DAXIAN testing equipment are designed according to
international test standards, such as ISO, ASTM, DIN, EN, GB, BS,
JIS, UL, TAPPI, AATCC, IEC, VDE, CSA,CEN and so on.
