Dry microbial penetration resistance tester
Dry microbial penetration resistance performance tester is professionaly used to determine the bacterial penetration resistance performance of materials to dry particulates in the size range of human body dandruff.Whenn testing, the samples were fixed on a container respectively.In these containers, five containers containing subtilisin talc, one container added with Not stained talcum powder was used as a control.A Petri dish was inserted at the bottom of each container at a distance from the bottom of the timer.
The equipment supporting the container is oscillated by a Gas ball oscillator, and all the talc penetrating the sample Falled on the culture dish , cultured without the culture vessel.The test results were evaluated by counting the growing colonies.
Standards:
ISO 22612:Clothing for protection against infectious agents - Test method for resistance to dry microbial penetration
YY / T 0506.5-2009:Surgical drapes, gowns and clean air suits for patients, clinical staff and equipment - Part 5: Test method for resistance to dry microbial penetration
Features:
Reliable design, stable test;
Front switch glass doors, easy to observe the operation of the experimental staff;
Removable bracket, height adjustable bracket;
Support, mobile dual casters;
Negative pressure experimental system, with the fan exhaust system and the introduction of high efficiency filter to ensure the safety of operators;
Embedded high - speed industrial microcomputer control;
Dedicated operating software, with software parameters calibration, fault detection automatically
Test principle:
When testing, the samples were seperately fixed on a container.In these containers, five containers carrying the bacillus subtilis and 1 container carrying uncontaminated talc powder used as control.Insert 1 petri dish at the bottom of each container and beneathe the bottom of the specimen.
The supporting vessel's equipment is oscillated by a gas ball type oscillator, and all of the talcum powder passing through the sample falls onto the petri dish. Remove the petri dish for culture. The experiment results were evaluated by counting the colonies.
Main parameters:
| Parameter Name | Parameter Value |
|---|---|
| Vibration form | pneumatic ball vibrator |
| Vibration frequency | 20800 times/min |
| Vibration force | 650N |
| Worktable size | 40cm × 40cm × 10mm |
| Workbench media | marble plate |
| Experimental container | stainless steel test container |
| Work stations | 6 |
| Cabinet negative pressure range | -50 Pa ~ -200 Pa |
| High efficiency filter filtration efficiency | better than 99.99% |
| Negative pressure cabinet ventilation flow | ≥ 5m³/min |
| Data storage capacity | 100.000 group |
| Working voltage | 220V 50HZ |
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