WSW series microbiological testing system(Thin film filter)

【 Main Features 】
1. Integrated ultra small design reduces the occupation of experimental operation space.
2. The 2-in-1 function can not only be used for microbial limit testing, but also as an independent vacuum pump, greatly saving costs.
3. It can simultaneously filter 2, 3, 4, and 6 filter membranes, with fast filtration speed and high work efficiency.
4. The filter cup is made of sanitary grade or above mirror stainless steel, which is durable, acid and alkali resistant, high temperature resistant, and easy to disinfect. Reusable, cost-effective, and easy to operate.
5. Each filter cup is marked with a scale, and the capacity of the filter cup is less than 150ML
5. Each filter head is controlled by an independent valve and designed for plug-in installation, making it convenient for operators to use flexibly. It is also convenient for laboratory personnel to carry out disinfection and sterilization.
6. Equipped with imported oil-free dual piston vacuum pump, with powerful power and a flow rate of up to 120L per minute, negative pressure close to -0.1MP, and extremely fast filtration speed.
7. Each system is equipped with an imported negative pressure gauge for easy observation of the negative pressure situation of the system
8. All stainless steel design, surface mirror treatment, convenient for cleaning and sterilization.
WSW series microbiological testing system【 Working Principle 】
Place the sample into the microbial limit filter head, and use the built-in vacuum pump of the testing instrument to perform negative pressure filtration to trap the microorganisms in the sample on the filter membrane. Use a membrane extractor to remove the filter membrane, transfer it to the prepared solid culture medium, with the bacterial surface facing up and flat. Cover the lid to form a closed culture box, place it in the corresponding constant temperature culture box for cultivation and counting.
WSW series microbiological testing system[Scope of use]
Pharmaceuticals: purified water, injection water, ophthalmic preparations, active pharmaceutical ingredients, capsules, biological products, tablets, oral preparations
Chemical industry: various industries that require testing of microbial water samples, food: purified water, mineral water, beverages, environmental monitoring, hygiene and epidemic prevention, tap water, etc.