The Quality Approved NL mark applies to products tested by TÜV Rheinland Netherlands that offer both: safety and quality. The product's key quality features are visible at a glance as keywords inside the test mark.

A safety check forms the basis for all further tests. Next, the product's quality features are subjected to careful examination. Criteria such as accuracy, ergonomics, or low-noise design are key factors.

The basic requirements catalog is based on current consumer requirements and wishes, as well as long-term experience in the quality assurance of products. These are documented in defined test programs that refer to individual characteristics of the product.

TÜV Rheinland tests a product sample and conducts regular production surveillance.

The validity of the certificate expires on its expiration date, or earlier if the standard(s) expire or either the client or TÜV Rheinland cancels the certificate.

Certified products may be labeled with a test mark.