Summary:
[Introduction to GSK Certification] GSK is the German Heavy Corrosion Protection Quality Assurance Association. The GSK RAL quality mark (Gütezeichen) provides a stronger guarantee for all forward-thinking individuals. The RAL quality mark RAL-GZ662 ensures tested defect-free coating standards, thus providing future-oriented solutions for the main water supply networks of drinking water, wastewater, and natural gas. It is only awarded to manufacturers that meet the strict quality assurance requirements of GSK's quality and inspection regulations. Its certification scope includes: epoxy powder coatings, spraying processes, and coated anti-corrosion valves and fittings. [Certification Standards] The RAL-GZ662 standard is divided into three parts: 1. RAL-GZ662/1: Special quality and testing regulations for epoxy powder coatings. Mainly involves comprehensive quality testing of the coating itself, including tests for thermal aging, adhesion, chemical resistance, etc. If used in drinking water systems, the coating must also comply with current national regulations in Germany, currently the drinking water regulations are KTW-BWGL and DVGW W270 (or EN 16421); If used for gas applications, it should comply with German DVGW G260; For series coatings: how to sample different colors and formulations, please contact us to confirm how to sample for testing? 2. RAL-GZ662/2: The provisions in this section apply to the quality assurance and testing requirements of processes that are critical to the coating. Evaluation of the entire spraying process, including personnel skills, operating instructions, spraying quality, testing equipment, etc.; 3. RAL-GZ662/3: The provisions in this section apply to the special quality and testing requirements of products (valves and fittings with powder coatings). Mainly checks aspects such as coating thickness, appearance quality, impact resistance, adhesion, etc.; The applicable coating requirement is that the coating must be GSK certified.
Certification Standards
Key words:
wras
GSK认证
KTW-BWGL
W270
DVGW认证
WRAS认证
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