Food industry Compressed air solid particle grade

The solid particle grade of compressed air in the food industry usually follows the relevant international or national standards. Among them, ISO 8573-1 is an international standard on the purity level of compressed air, which specifies the maximum allowable content of solid particles, water and oil. For food plants, a purity grade of ISO 8573-1:2010 Class 1.2.1 or higher is usually required, which means that the maximum size of solid particles should be less than or equal to 0.1 microns (μm).

In addition, there are other standards and guidelines related to compressed air in the food industry, such as the food processing guidelines issued by the US FDA (Food and Drug Administration), emphasizing that compressed air must be free of harmful substances and will not contaminate food. The European Hygienic Engineering Group (EHEDG) also provides guidelines for the hygienic design and operation of food processing equipment, including compressed air systems. In China, there are also corresponding food safety regulations and standards, such as the national standard (GB) on food contact materials and equipment hygiene requirements, these standards may indirectly affect the design and operation of compressed air systems.

In summary, the solid particle level of compressed air in the food industry should reach a certain purity standard to ensure that the compressed air does not contain harmful substances and meets the food use standards. Specific solid particle grade requirements may vary from region to region and from business to business and will therefore need to be implemented in accordance with local or business specific regulations.