The E-mark certification requirements and key points of performance testing for automotive air filters

The E-mark certification of automotive air filters is one of the necessary conditions for the compliance of automotive parts in the European market. This certification mark indicates that the product complies with all safety and environmental protection requirements in Europe, especially in terms of emission control, noise control and environmental protection for automotive parts. The following are the main requirements and key points of performance testing for automotive air filters in the E-mark certification:

Basic requirements for E-mark certification

Comply with the ECE R-100 standard: The Economic Commission for Europe (ECE) has formulated multiple regulations related to automotive parts. As an automotive component, air filters need to comply with the relevant EEC(European Economic Community) regulatory requirements. E-mark certification is usually based on the EEC R-100 standard.

Product identification: The E-Mark (including "E" and the corresponding certification country number, such as E1 for Germany) must be marked on the product and packaging to indicate compliance with EU regulations.

Key points of performance testing

Filtration efficiency test

The main function of a filter is to block impurities and pollutants in the air, so it must pass a filtration efficiency test. The test contents include:

Determine the filtration efficiency of the filter element for different particles (such as dust, sand grains, pollen, etc.).

By using specific air flow rates and particle concentrations, the particle content of the air before and after entering the filter is measured to ensure compliance with standard requirements (generally, a filtration efficiency of over 95% is required).

Airflow resistance test

Measure the air flow resistance of the air filter under working conditions. High airflow resistance can affect the intake volume of the engine, thereby influencing engine performance and fuel efficiency.

The test content includes the relationship between air flow and pressure difference under different flow rates and pressures, ensuring that the design of the filter meets the filtration effect without causing excessive air flow resistance.

Durability and impact resistance tests

As automotive air filters need to be exposed to extreme working environments for long periods of time (such as high temperatures, moisture and dust, etc.), durability tests are required, including:

High-temperature, humidity and impact resistance tests ensure that effective filtration performance can still be maintained in harsh environments.

Frequently simulate the actual usage conditions of the filter to test its performance under different loads and pressures.

Sealing and leak-proof tests

Sealing performance is another key point in the design of air filters, ensuring that no air leakage occurs as it passes through the filter.

Special equipment is used for sealing tests to ensure that air can only pass through the effective filtering material of the filter and not through unqualified joints or materials.

Environmental impact and Material testing

According to the EU environmental protection regulations (such as RoHS, REACH, etc.), the materials of air filters must meet environmental protection standards and avoid the use of harmful substances.

Test whether the materials are free of harmful chemicals (such as lead, mercury, etc.) and whether they can be environmentally friendly recycled.

Noise and vibration control test

The design of air filters also needs to take into account the control of noise and vibration, especially during high-load operation, which may have an impact on the operation of the car engine.

Conduct noise tests to ensure that the noise generated by the filter during operation is within the standard limit.

Document Requirements and Compliance Statements

Technical documents: Manufacturers must provide detailed technical documents to prove that their products comply with the requirements of EEC regulations. These documents include product design descriptions, performance test reports, quality control measures, raw material lists, etc.

Compliance Statement: After obtaining the E-mark certification, manufacturers need to submit a compliance statement to the relevant certification body to confirm that their products comply with the relevant safety and environmental standards of the European Union.

Inspection and approval process

Initial inspection: The certification body will conduct a preliminary inspection and assessment of the car's air filter.

Sample submission and verification: During the application process, manufacturers need to submit samples that meet the requirements, and the certification body will conduct strict performance verification.

Continuous supervision: After obtaining the E-mark certification, manufacturers also need to conduct regular quality inspections and re-examinations of their products to ensure continuous compliance with EEC requirements.

The certification mark of E-mark

Once the certification is passed, the air filter products need to be marked with the E-mark certification symbol. This symbol contains the letter "E" and the subsequent country code (such as "E1" for Germany, E2 for France, etc.) as well as the certification mark number.

Summary:

The E-mark certification requirements for automotive air filters mainly focus on aspects such as the filtration efficiency, air flow resistance, durability, sealing performance and environmental protection requirements of the products. By meeting these test standards and requirements, the product can not only smoothly obtain the E-mark certification, but also ensure its legal sale and use in the European market. Meanwhile, the certification process includes steps such as the submission of technical documents, sample verification and regular review.