A large number of examples have shown that bacteria can penetrate through shielding materials with dry organic or inorganic particles, such as dander or clean clothing carrying bacteria, or packaging materials during storage period with particles carrying bacteria. This instrument can be used to determine the bacterial penetration performance on dry particles within the range of human skin flakes in terms of material impedance.

What are the applicable ranges of the dry state microbial penetration tester

The dry state microbial penetration performance tester/dry state bacterial resistance tester is used to determine the bacterial penetration performance on dry particles within the size range of human skin flakes in terms of material impedance. During testing, the samples are fixed in separate containers.

Compliant with standards:

ISO22612; YY/T0506.5-2009

Technical Specifications:

Vibration form: Pneumatic ball vibrator

Vibration frequency: 20800 times/minute

Vibration force: 650N

Workbench size: 40cm × 40cm × 10mm

Workbench medium: marble slab

Experimental container: Stainless steel experimental container

Number of job positions: 6

Negative pressure range of cabinet: -50Pa~-200Pa

High efficiency filter filtration efficiency: better than 99.99%

Negative pressure cabinet ventilation flow rate: ≥ 5m3/min

Data storage capacity: 100000 sets

Working voltage: 220V 50HZ

Characteristics of dry state microbial penetration performance tester/dry state microbial resistance tester:

1. Reliable design and stable testing;

2. Front switch glass door, convenient for experimental personnel to observe and operate;

3. Detachable bracket with adjustable height; 4. Dual purpose casters for support and mobility;

5. Negative pressure experimental system, equipped with fan exhaust system and high-efficiency air inlet and outlet filters to ensure the safety of operators; 6. Embedded high-speed industrial microcomputer control;

7. Operating software with software parameter calibration and automatic fault detection

Testing principle of dry state microbial penetration tester

The experiment is conducted on specimens fixed separately on a container. Among these containers, 5 containers carrying Bacillus subtilis talc powder and 1 container containing uninfected bacterial talc powder were used as controls. Insert a culture dish at a close distance below the specimen at the bottom of each container.

The equipment supporting the container is oscillated by a gas ball oscillator, and all the talcum powder penetrating the specimen falls onto the culture dish. The culture dish is then taken out and cultured.

Count the growing bacterial colonies.

Technical specifications for dry state microbial penetration tester

1. Test chamber: black inner wall, volume: 0.5m3, built-in fan and lighting;

2. Instrument air source: 0.8MPa compressed air;

3. Noise: about 90dB;

4. Touch screen operation;

5. Instrument size: 1000mm ´ 690mm ´ 1390mm;

6. Instrument weight: 85kg

7. Power supply: 220V.

List of configurations for dry state microbial penetration tester

This instrument should be carefully unpacked and inspected. Any damage or loss of the instrument, please contact our customer service department.

When you open the packaging, please check the following materials (based on the actual packing list):

1. One host;

2. 8 sets of test boxes;

3. One power cord;

4. One copy of the instruction manual

5. Optional accessories:

6. Air storage tank