The technical standards of filter products are divided into four levels, namely, national standards, industry standards, local standards and enterprise standards.

According to the filter content is divided into technical conditions, test methods, connection size, series parameters, quality points, etc., in order to facilitate the filter production enterprises and users of the filter standard to fully grasp, Recently, the China Air Compressor Industry Association Automotive Filter Committee and the China Internal Combustion Engine Industry Association Filter Branch have compiled and printed the product standards implemented by filter manufacturers, mostly based on the requirements of the supporting Oems. With the increase of joint ventures of domestic Oems and the introduction of new models.

International standards (ISO) and filter technology standards of some advanced countries are also introduced accordingly. The criteria that the average user of the filter needs to understand should be the technical conditions. There are 12 such standards approved by the State Bureau of Machinery, Including internal combustion engine oil filter paper filter technical conditions, rotary oil filter technical conditions, internal combustion engine paper core oil filter assembly technical conditions, split centrifugal oil filter rotor assembly technical conditions, split centrifugal oil filter technical conditions, diesel engine paper filter diesel filter assembly technical conditions, diesel engine diesel filter paper filter technical conditions, Rotary diesel filter technical conditions, internal combustion engine oil bath and oil immersed air filter assembly technical conditions, internalcombustion engine oil bath and oil immersed air filter element technical conditions, internal combustion engine paper filter air filter assembly technical conditions, internal combustion engine air filter paper filter element technical conditions.

These standards have made specific provisions on the technical indicators of oil filters, diesel filters, air filters and three filter elements. The air compressor steam filter also stipulates the technical indicators of the gasoline filter.

With these standards, those who produce hydraulic filters, hydraulic parts manufacturers will pay more attention to the quality of the factory.