In the industrial field, Industrial high pure water ultrapure water equipment plays a vital role. They provide key water quality assurance for precision manufacturing, electronics, medicine and other industries.
First of all, from an academic point of view, there is no unified, global standard for high-purity water and ultrapure water. However, in practical applications, people usually use resistivity (or conductivity) as a key indicator to measure the purity of water quality. For ultrapure water, its resistivity is generally required to be greater than 18.2 megohm cm (MΩ cm, at 25°C). This means that the ion content in ultrapure water is extremely low and contains almost no impurities.
In addition to resistivity, other indicators of ultrapure water are also of great concern. For example, the total organic carbon (TOC) content is required to be less than 50 micrograms per liter (μg/L) to ensure the purity of the water quality. At the same time, the endotoxin content should also be less than 0.03 endotoxin units per milliliter (EU/ml) to reduce the potential impact on the experiment or production process.
In China, the standards for high-purity water are also clearly defined. For example, in the GB33087-2016 standard, the resistivity requirement for ultrapure water is at least 18 megohm cm (MΩ cm, at 25°C). This standard is basically consistent with the international standard, reflecting the advancement and standardization of my country's high-purity water technology.
In summary, the water purity standards of Industrial high pure water ultrapure water equipment are mainly reflected in resistivity, TOC content and endotoxin content. These strict indicators ensure the high purity and high quality of ultrapure water, providing reliable water quality assurance for all walks of life.
