Functions of Injection water preparation system

The injection water preparation system is composed of water treatment equipment, storage equipment, distribution pumps and pipe networks. The water system has the possibility of external pollution caused by the raw water and external causes of the water system, and the pollution of the raw water is the most important external pollution source of the water system. The US Pharmacopoeia, European Pharmacopoeia, and Chinese Pharmacopoeia all clearly require that raw water for pharmaceutical water meet at least the quality standards for drinking water. If the drinking water standard is not reached, pre-purification measures must be taken first. Because E. coli is a clear sign of water pollution, there are clear international requirements for E. coli in drinking water. Other polluting bacteria are not subdivided. In the standard, the total number of bacteria is expressed. The limit of the total number of bacteria in China is 100 / ml, which indicates that there is also microbial pollution in the raw water that meets the drinking water standard, which endangers the water system The main contaminating bacteria are Gram-negative bacteria. Others, such as the unprotected exhaust of the storage tank or the use of inferior gas filters, Injection water preparation system water from the polluted outlet can also cause external pollution.