Know-how - both geological and technical - is of great importance in the natural stone sector. The Brachot Stone Expert Centre, headed by a doctor in geology, has compiled a detailed technical specification sheet for each of the natural stones in the Brachot-Hermant range. These sheets can be obtained from your professional stone supplier. The Brachot Stone Expert Centre will also be pleased to answer any technical questions you may have, relating to placing, use of adhesives, discoloration, etc.
In Europe a distinction is made between three different types of norm:
- norms relating to specific tests, such as porosity, compressive strength, hardness, etc.;
- norms relating to classification and terminology, including the commercial names for European natural stones;
- product norms, which set down the requirements which the natural stones must meet for use in particular applications (such as technical characteristics, tolerance levels for size and flatness, etc.).
Until recently, many of the norms for the testing of natural stone were based on the norms for concrete. Fortunately, more and more norms are now being developed for the specific testing of natural stone. The following is an overview of the most important of these stone-specific norms. Should you require more detailed explanation, please feel free to contact the Brachot Stone Expert Centre.
