The moisture resistant microbial penetration tester is used to measure the performance of materials in resisting bacterial penetration in liquids when subjected to mechanical friction (the shielding performance of the mechanical friction chamber against bacterial penetration carried by liquids); Mainly used for medical surgical orders, surgical gowns, and clean clothes.

What are the uses of a moisture resistant microbial penetration tester

Used to determine the performance of materials in resisting bacterial penetration in liquids under mechanical friction (shielding performance of mechanical friction chambers against bacterial penetration carried by liquids); Mainly used for medical surgical orders, surgical gowns, and clean clothes.

Working principle of moisture resistant microbial penetration tester

Place the test piece on an agar culture dish, place a bacterial plate of the same size on top of the test piece, and cover it with a high-density polyethylene film about 10 microns thick. Use a conical steel ring to clamp the three layers of material (the test material at the bottom, the bacterial plate in the center, and the high-density polyethylene film on top) together, and place this ring kit on the agar culture dish on the turntable. The test refers to acting on the material in a way that can move on the entire surface of the culture dish, causing the material to be subjected to the combined effects of pressure and friction, in order to simulate the stress situation that may occur in barrier materials and microbial penetration under wet conditions in practical applications. Microorganisms on the agar plate will migrate to the surface of the agar medium after penetrating the test material. The penetration performance of the test material can be quantitatively evaluated by culturing and counting the colonies in the agar dish.

Characteristics of Moisture Barrier Microbial Penetration Tester

1. The turntable rotates quietly and steadily, and the rotation time of the turntable is automatically controlled by a timer.

2. The experiment refers to the lateral reciprocating movement guided by a rotating outer wheel from the center to the periphery of a rotating agar culture dish.

3. The experiment refers to the adjustable force applied to the material.

4. The test components are all made of corrosion-resistant stainless steel.

Technical specifications of moisture resistant microbial penetration tester

1. Rotary speed (60 ± 1) rpm

2. The experiment refers to the pressure (3 ± 0.02) N applied to the material

3. Outward wheel speed 5-6rpm

4. Timer setting range 0-99.99min

5. Total weight of inner and outer ring weights: (800 ± 1) g