The production of food-grade chemical raw materials requires extremely strict compressed air to ensure the safety and quality of the final product. These requirements usually follow the relevant international or domestic standards, and pay attention to the purity of compressed air, water content, oil content, microbial content and other aspects. The following is a detailed description of these requirements:
1. purity requirements
1. Solid particle content:
- according to the ISO 8573-1 international standard, the production of food-grade chemical raw materials usually requires a very low content of solid particles in compressed air, and generally needs to reach a purity level of Class 1.2.1 or higher, that is, solid particles ≤ 0.1 μm (microns).
2. Oil content:
- oil is one of the common pollutants in compressed air, which poses a potential threat to the production of food-grade chemical raw materials. Therefore, the oil content in the compressed air is required to be extremely low, generally less than 0.1 mg/m & sup3;, and some standards even require ≤ 0.01 mg/m & sup3;.
2. humidity requirements
- moisture content moisture in compressed air is also one of the factors that need to be strictly controlled. Dew point temperature is an important indicator to measure the moisture content in compressed air. The production of food-grade chemical raw materials usually requires a dew point temperature lower than -40°C to prevent moisture from polluting the raw materials. In addition, there are also standards that stipulate that the water content should be less than 7ppm.
3. microbial content
- microorganisms are one of the important factors affecting food safety, and also pose potential risks to the production of food-grade chemical raw materials. Therefore, it is required that the microbial content in the compressed air is extremely low, and the general bacterial count should be less than 100CFU/m & sup3; to ensure that the raw materials will not be contaminated.
4. other requirements
1. Acidity (pH):
- the pH of the compressed air also needs to be moderate to avoid affecting the raw materials. A pH between 6.5 and 8.5 is usually required.
2. Odor:
- compressed air should be odor-free to ensure that it does not adversely affect the raw materials.
5. safeguard measures
1. Choose the right air compressor:
- should be selected with the relevant certification, can produce standard compressed air compressor, and regular maintenance and maintenance.
2. Installation of purification equipment:
- install filters, dryers and other purification equipment in the compressed air system to remove pollutants such as particulate matter, microorganisms, moisture and oil in the air.
3. Establish monitoring system:
- real-time monitoring and recording of various indicators of compressed air, timely detection and treatment of problems.
4. Regular testing:
- comprehensive inspection of the quality of compressed air shall be carried out regularly to ensure its compliance with relevant standards and regulations.
In summary, the production of food-grade chemical raw materials has very strict requirements for compressed air, involving purity, water content, oil content, microbial content and other aspects. In order to ensure the safety and quality of raw materials, manufacturers must follow relevant standards and regulations and take effective measures to ensure that the quality of compressed air meets the standards.
