What Is TS EN 12904?
TS EN 12904 is the European and Turkish standard established for silica sand and filter gravel used in drinking water treatment. This standard defines the chemical and physical criteria required to ensure that filter materials in contact with water release no harmful substances into drinking water and meet filtration performance requirements.
In short, TS EN 12904 is the official way of saying "this sand can be safely used in drinking water." An uncertified filter sand may release unwanted minerals or impurities into the water; a certified product eliminates this risk.
What Does TS EN 12904 Guarantee?
- Chemical safety: The sand releases no harmful substances (heavy metals, soluble impurities) into drinking water.
- High SiO₂ purity: It meets the silica content required for filtration performance and chemical stability.
- Low impurity: Clay, dust, and organic matter are kept under control.
- Suitable grain distribution: It provides stable flow in the filter bed and efficient particle capture.
- Acid resistance: It does not dissolve in acid and does not lose mass over time.
Why Is TS EN 12904 Important?
The material used in drinking water treatment directly concerns public health. Municipal water treatment plants, drinking water projects, and many industrial treatment systems require the filter material they use to be standard-compliant and certified.
Uncertified sand may seem cheap in the short term, but it carries the risks of releasing impurities into the water, clogging early, requiring frequent replacement, and non-compliance. A TS EN 12904 certified product both meets legal and technical specifications and provides safe, economical filtration over the long term.
Which Products Fall Under TS EN 12904?
The standard covers silica-based materials used in water treatment filter beds:
- Filter sand (main filtration layer)
- Filter gravel (support and drainage layer)
- Filter quartz (high-purity filtration)
In multi-layer filters, these materials are used together to achieve maximum filtration efficiency.
Seyman Maden and TS EN 12904
At Seyman Maden, we manufacture our filter sand and filter gravel products in compliance with the TS EN 12904 standard. Every batch of product undergoes sieve analysis, grain distribution, and chemical analysis in our laboratory before shipment. This way, drinking water treatment plants and industrial filtration projects can be confident of the standard compliance of the material they receive from us. We share our certification documents upon request.
Conclusion
TS EN 12904 is the official assurance of safety and quality in drinking water treatment. Using certified filter material protects public health, meets legal and technical specifications, and provides safe, economical filtration over the long term.
At Seyman Maden, we supply filter sand and filter gravel compliant with the TS EN 12904 standard from our facility in Tekirdağ. For products suited to your project, certification documents, and a price quote, get in touch with us.
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