The characteristic values and the recommendations for use appearing in the French Limestone Collection are given for information only. It is necessary to validate the suitability for use of a stone in the context of each project, and in particular for the most important use (exterior floors, base, cornices, etc.). For France, the use prescription must be based on the reports of identity and aptitude tests in accordance with standard NF B 10-601.

The photographs appearing on the stone sheets define the general tone of the material. Stone is a natural material, it exhibits variations in color, grain, and texture, which implies that there may not be an identity of appearance between these documents and a future supply.