PETG media bottles are a plastic storage container with high transparency, which are generally used to store serum, culture medium, buffer solution and other solutions. In order to avoid microbial contamination caused by the packaging, it will be sterilized, and this packaging is mainly sterilized by cobalt 60.
Sterilization is to ensure the removal or killing of all bacteria, viruses, fungi and other microorganisms on the PETG media bottles by various physical and chemical means, so as to achieve a sterility assurance level of 10-6, that is, to ensure the survival of microorganisms on an item The probability is only one in a million. Only in this way can microorganisms on the packaging be prevented from causing additional contamination of the contents.
Cobalt 60 sterilization is the use of 60Co γ-ray irradiation to act on microorganisms, directly or indirectly destroying the nucleus of microorganisms, thereby killing microorganisms and playing the role of disinfection and sterilization. It is a kind of radiation sterilization technology, and the gamma-ray produced by the radioactive isotope cobalt 60 is used to irradiate packaged food. In the process of energy transmission and transfer, powerful physical and biological effects are produced to achieve the purpose of killing insects, sterilizing bacteria and inhibiting physiological processes. 60Co-γ-ray irradiation sterilization is a "cold processing" technology. It sterilizes at room temperature. The γ-ray has high energy and strong penetrating power. It will not cause the temperature of the item to rise while sterilizing. It is also called cold processing. Sterilization.
Cobalt 60 sterilization method is a very mature sterilization method. It is not only used in PETG media bottles, but also widely used in food, medical equipment and other fields.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.