SGS EMC Testing Services

SGS EMC Testing Service is a solution in the field of electromagnetic compatibility testing / EMC testing / EMI testing / EMS testing / emissions testing / immunity testing / electrical and electronic product compliance, provided by SGS for manufacturers of electrical and electronic products, industrial equipment, machinery, IT equipment, household appliances, IoT, lighting, automotive electronics, and products using electrical circuits or electronic components.
The service is used to evaluate the ability of equipment to operate in an electromagnetic environment without generating inappropriate levels of interference to surrounding devices, while also checking its ability to maintain operation when subjected to external interference sources. EMC testing is particularly suitable for businesses developing new products, preparing for certification, or needing to demonstrate that products meet technical requirements before market entry.
SGS does not apply a fixed testing program for all products. The testing plan is developed based on device type, function, hardware configuration, power supply, connection interface, wireless technology, operating environment, target market, applicable standards, and the regulatory or certification requirements of each product.

1. Service Highlights

SGS combines emissions testing and immunity testing to evaluate both the interference levels generated by the equipment and its ability to withstand external electromagnetic environmental effects.
In emissions testing, the product's electromagnetic emission levels are checked to determine whether the equipment generates interference exceeding the permissible limits according to applicable standards.
In immunity testing, the equipment's ability to maintain operation when subjected to external electromagnetic disturbances is checked. Items may include electrostatic discharge – ESD, surge, voltage dips, and other types of interference depending on the standard.
The service can be applied to household appliances, IT equipment, audio/video equipment, lighting products, machinery, industrial equipment, wireless products, medical devices, robotic products, and many other groups of electrical and electronic devices.
SGS also provides pre-compliance evaluation to help businesses detect EMC issues early before conducting official certification testing.
For export products, the scope of EMC testing can be determined according to the requirements of each market such as the EU, the United States, Canada, Japan, or other countries depending on the device type and relevant regulations.

2. Who is this service suitable for?

SGS EMC Testing Service is suitable for:
- Electrical and electronic product manufacturers.
- Machinery and industrial equipment manufacturers.
- IT and telecommunication equipment manufacturers.
- IoT and wireless device manufacturers.
- Household appliance manufacturers.
- Lighting and audio/video equipment manufacturers.
- Automotive electronics businesses.
- Medical device manufacturers.
- Businesses developing new products.
- Businesses requiring pre-compliance testing.
- Businesses preparing for certification or exporting products.
- Businesses needing to identify causes related to EMI or immunity.

3. Consultation and Testing Process

The process may include:
- Identifying product type and intended use.
- Checking target markets.
- Determining applicable EMC standards.
- Collecting technical documentation and product configuration.
- Identifying emissions and immunity items to be tested.
- Preparing test samples and necessary accessories.
- Setting up the product's operating configuration.
- Performing EMC testing.
- Recording and evaluating results.
- Identifying compliant or non-compliant items.
- Supporting retesting after design adjustments, if necessary.
- Preparing test reports for certification or compliance.

3.1. Criteria for Developing a Testing Plan

The plan is developed based on:
- Device type.
- Product function.
- Power supply used.
- Hardware configuration.
- Circuit board and power supply unit.
- Connection interface.
- Cables and accessories.
- Wireless technology, if applicable.
- Operating environment.
- Target market.
- Applicable EMC standards.
- Certification requirements.
- Operating modes to be tested.
- Level of pre-compliance or full compliance testing.

3.2. Key Items

- Electromagnetic Compatibility – EMC Testing.
- Electromagnetic Interference – EMI Testing.
- Electromagnetic Susceptibility – EMS Testing.
- Emissions testing.
- Immunity testing.
- Electrostatic Discharge – ESD testing.
- Surge testing.
- Voltage dip testing.
- Conducted and radiated emissions according to relevant standards.
- Conducted and radiated immunity according to relevant standards.
- Pre-compliance evaluation.
- Regulatory EMC testing.
- EMC testing for electrical and electronic products.
- EMC testing for IT and telecommunication equipment.
- EMC testing for household appliances.
- EMC testing for lighting products.
- EMC testing for machinery and industrial equipment.
- Automotive EMC Testing.
- Testing support for certification and market access.

3.3. Information Required from Customers

Customers should provide:
- Product name and model.
- Intended use.
- Hardware configuration.
- Power supply.
- Schematics or technical documentation, if available.
- Connection interfaces.
- Cables and accessories used with the product.
- Wireless technology, if applicable.
- Intended sales markets.
- Standards or certifications to be met.
- Product operating modes.
- Number of test samples.
- Estimated time to market.
The more complete the information, the more accurately the standards, test configuration, and scope of EMC testing can be determined for the actual product.

3.4. Result Verification and Evaluation

Before testing, the sample configuration, power supply, accessories, cables, and operating modes must be clearly defined to ensure that the results accurately reflect the intended usage conditions.
During testing, emissions and immunity parameters are checked according to the methods and limits of the applicable standards.
If non-compliant items are found, businesses can use the test results to review factors such as circuit design, shielding, grounding, cabling, power supply, or component layout before retesting.
Upon completion, the test report can be used as technical documentation for compliance assessment, certification, or communication with customers, as applicable.

4. Benefits for Customers and Businesses

SGS EMC Testing Service helps businesses early assess the electromagnetic compatibility of their products before mass production or market launch.
Emissions testing helps identify interference levels generated by the equipment, while immunity testing provides data on the equipment's ability to withstand external electromagnetic environmental effects.
For businesses developing new products, pre-compliance testing can help detect issues earlier, providing a basis for design adjustments before official certification.
For export businesses, EMC testing helps demonstrate that products meet the technical and regulatory requirements of the target market.
Thus, businesses can establish a process from market identification → EMC standard selection → sample preparation → emissions & immunity testing → results evaluation → product adjustment if necessary → certification and market access.

5. Highlights and Suitable Customers

- EMC testing for electrical and electronic devices.
- Combines emissions and immunity testing.
- Supports EMI and EMS evaluation.
- Can test for ESD, surge, and voltage dips.
- Supports pre-compliance testing.
- Suitable for products in the R&D phase.
- Supports testing for certification.
- Suitable for industrial equipment, IT, IoT, and consumer electronics.
- Offers solutions for automotive EMC.
- Helps businesses access multiple international markets.
- Suitable for manufacturers needing compliance assessment before mass production or export.
SGS EMC Testing Service is suitable for electrical and electronic equipment manufacturers who need to evaluate electromagnetic emissions, immunity, and the level of compliance with EMC requirements before launching products to market. SGS supports businesses in building a process from standard identification, test configuration preparation, EMC testing execution, to providing data for design adjustments, certification, and market access.