ASTM F1671 Compliant Viral/Blood Penetration System
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The Wet Penetration Tester is designed to evaluate the resistance of protective clothing and barrier materials to bacterial penetration under wet conditions. By applying controlled pressure and mechanical friction to the sample, the tester simulates real-world usage scenarios. Microbial penetration is quantified through culture and colony counting, providing an objective measure of material barrier performance.
Standards
(1) EN ISO 22610 – Clothing for protection against infectious agents — Determination of resistance to penetration by liquids.
(2) EN 14126 – Protective clothing — Performance requirements for protective clothing against infective agents.
(3) YY/T 0506.6 – Surgical drapes, gowns, and clean air suits — Test method for resistance to wet microbial penetration.
Feature
Automatic stop as preset counters.
High stable testing performance from precise structure design.
Stainless steel body provides high corrosion resistant performance.
Adjustable loading pressure.
Technical Parameters
| Item | Specification |
|---|---|
| Rotary Speed | 60 rpm |
| Applied Pressure | 3 ± 0.02 N |
| Eccentric Speed | 5–6 rpm |
| Timer Range | 0–99.99 min |
| Loading Weight | 800 ± 1 g |
| Power Supply | 220 V, 50 Hz |
| Dimensions | 550 × 300 × 450 mm (21.65 × 11.81 × 17.72 in) |
| Net Weight | 27 kg |
Principle
Place the specimen on AGAR plate. A piece of the same specification is placed on the specimen. Cover with a high density polyethylene film about 10 microns thick. The three layers of material using the cone steel ring (the test material below, the mushroom center, high density polyethylene film on top) are stuck together. Place the ring on the AGAR plate on the turntable. The experiment means that the material can be applied to the material in a way that can be moved on the surface of the whole plate, so that the material is subjected to the combination of pressure and friction.
This model can simulate the force condition of the barrier material in the actual application and the microorganism penetration under the wet conditions.
The microbes on the microbial migrate to the surface of the AGAR plate after penetrating the experimental material. Through the culture and colony count of AGAR plate, the penetration performance of the test material can be quantitatively evaluated.
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