Sterile syringe filters are mainly used in the pharmaceutical industry, fermentation, food & beverage, beer brewing, biological products and others. How to sterilize the syringe filter? Generally, Hawach has two methods, ETO sterilization and Gamma sterilization.
The following is some description:
ETO sterilization, namely ethylene oxide sterilization. It destroys the metabolism of bacteria, causes microbial death, and achieves the purpose of sterilization. EO gas is toxic, so the concentration of EO in indoor air must be controlled to be lower than the national standard. The whole process of sterilization takes a long time, which is due to the need for long ventilation to remove EO residues. EO gas is flammable and explosive. It cannot be leaked during storage and sterilization. Safe sterilizers must be selected for safe operation and storage.
Gamma sterilization is by gamma-ray irradiation, the chemical substances (DNA) in microorganisms have changed, resulting in the loss of cell activity, so as to achieve the purpose of sterilization. Gamma sterilization has the advantages of complete sterilization, non-toxicity, no residue, green environmental protection, low energy consumption and energy saving. It can sterilize a large number of products, immediately using after sterilization without waiting. Gamma-ray sterilization requires a certain device to be able to carry out, but also a one-time investment of more capital. After sterilization, the white syringe filter is probability yellowish slightly.
Generally, Hawach syringe filters use Gama sterilization, which requires a certain amount for sterilization, otherwise, additional operating costs will be required; if ETO sterilization is applied, there is no need for quantitative requirements.