They are reliable. They are company independent. They are always completely up-to-date. RAL Gütezeichen (Quality Marks) differ from other labels because the RAL quality assurance system guarantees that they are neutral and objective. In addition, the Quality Assurance Associations regularly check the Quality Assurance and Test Specifications, adapt them where necessary to new requirements and thus keep the regulations up-to-date. RAL Gütezeichen (Quality Marks) are thus an independent, objective validation for quality assurance that represent a consistently monitored level of quality.