Moisture resistance microbial penetration tester

Moisture resistance microbial penetration tester

Wet Bacteria Penetration Tester

Model: RF4316A

The moisture-resistant microbial penetration tester is used to test the ability of the sample to resist the penetration of wet microbes under mechanical friction conditions.

Place the test article on the agar plate of the petri dish, place the donor material containing bacteria on the test article, with the bacteria side down, and then paste the film. The film thickness is about 10 microns, and the material is HDPE. Two tapered steel rings are used to fix the three layers, and a certain pulling force is applied. Press the pierceable metal finger against the material with a certain pressure to bring the sample into contact with the Petri dish. The finger can be rubbed on the entire surface of the material within 15 minutes by the action of the eccentric cam. Under the dual action of friction and liquid migration, bacteria can pass through the sample through the carrier material to reach the surface of the culture dish. After 15 minutes of testing, replace the petri dish and repeat the above test 5 times with the same carrier material and sample. To evaluate the penetration ability of bacteria.

RF4316A tester, including motor, cam device, friction finger, load adjustment device, etc., to complete the friction action and down pressure of the finger.

Scope of application: surgical curtains, robes, clean air clothing, etc.

Applicable standards

Specifications:

1. Petri dish size: 14cm;
2. Number of Petri dishes: 6;
3. Petri dish speed: 60rpm;
4. Finger swing speed: 5.6 revolutions/minute;
5. Finger radius: 11mm;
6. Removable polished fingers;
7. Finger downward pressure: (3±0.2)N

Order Item No. RF4316A Moisture Resistance Microbial Penetration Tester

RF4316A/1 stainless steel test finger