Products applying for the GS mark and certificate must be tested by a third-party independent certification body in accordance with the European (EN) standard or the German (DIN) standard. At the same time, the quality assurance system of the production enterprise is checked and the certificate can only be issued after passing. After obtaining the GS mark and certificate, the applicant can mark the GS mark on the product. The certification body performs factory inspections on production companies every year to ensure product conformity and consistency.

The GS mark is a voluntary test mark. For products that pass the test, indicate that other agencies have tested the safety of this product and continue to maintain production control. The GS mark indicates that it has complied with the regulations of German industry, importers, distributors, trading companies, government insurance, and consumer organizations. This mark proves that technological products comply with the provisions of the "German Product Safety Law." These organizations may not be able to manage the consistency of products from all over the world on their own, but they want to avoid the uncertainty of product liability and achieve customer satisfaction. Therefore, the concept of the GS logo is quite successful, not only becoming a marketing standard, but also widely supported by many customers and distributors in Europe and other countries.

The GS mark indicates that the safety of the product has passed the test of an independent institution with credibility. Although the GS mark is not required by law, it can indeed make manufacturers subject to strict German (Europe) product safety laws when product failures cause accidents. Therefore, the GS logo is a powerful market tool that can enhance customer confidence and desire to buy. Although GS is a German standard, most European countries agree. And while meeting the GS certification, the products will also meet the requirements of the European Community's CE mark. Unlike CE, there is no legal requirement for the GS mark, but since safety awareness has penetrated ordinary consumers, an appliance with a GS mark may be more competitive in the market than general products.