For Belgian blue stone, Buildwise’s Technical Information 220 (TV 220) is the reference guide in the Belgian construction industry, supplemented by European product standards for each application and quality labels such as ATG and BENOR. If you’re drafting specifications or reviewing a purchase, you’ll find below which standard applies to what and which documents you can request from your supplier. Renier provides this documentation as standard; our stone comes from our own Belgian quarries with a ATG-Certified Technical Data Sheet.
| Standard or guideline | What is it for? |
|---|---|
| TV 220 (Buildwise) | The Belgian Reference Guide: Characteristics, Quality Classes, and Visual Criteria for Blue Stone |
| NBN EN 1341 | Strips and tiles for outdoor paving |
| NBN EN 12057 | Modular tiles for interior floors and walls |
| NBN EN 1469 | Natural Stone Siding |
| NBN EN 12058 | Indoor flooring and stair coverings |
| EN 12371 | Determination of Frost Resistance |
| DIN 51130 | Non-slip (R rating: R10 indoors, R11–R12 around the pool and outdoors) |
CE Marking is required for construction products and confirms that the brick has been tested in accordance with the harmonized EN standards. ATG (Technical Approval) certifies the consistent quality of a quarry; the technical data sheet for our Vinalmont mesh limestone is ATG-certified. BENOR confirms that production complies with Belgian and European standards. And Petit Granit is the official name for Belgian blue stone: the term refers to its Belgian origin, not to granite.
When preparing specifications or conducting an inspection, you should request three things: the technical data sheet with the measured values (density, water absorption, frost resistance), the CE or ATG certificate, and the quarry’s location. At Renier, this information is included as standard in the spec sheet for custom orders, with batch identification for traceability; see also our certificates page and the Technical Specifications. Architects who specify materials find the entire custom design process at Custom thresholds for architects.
What standard applies to Belgian blue stone? Buildwise's TV 220 is the Belgian reference guide. In addition, European product standards apply depending on the application: NBN EN 1341 (paving), EN 12057 (interior tiles), EN 1469 (facades), and EN 12058 (interior floors and stairs).
What is the difference between CE, ATG, and BENOR? CE is the mandatory European marking; ATG certifies the consistent quality of a quarry or product; BENOR confirms that production complies with Belgian standards. They complement each other.
What slip resistance class do I need? According to DIN 51130: R10 is sufficient indoors; for areas inside, outside, and around a swimming pool, choose R11 to R12, which can be achieved with a bush-hammered or flamed finish.
How do I verify the origin of blue stone? Ask for the quarry and the certificate. Genuine Belgian stone can be traced back to the quarry; at Renier, to our own quarries in Sprimont and Vinalmont.