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There are a series of specific tests the existence of which is justified by the specific uses of stone

1. Resistance to thermal changes. The loss of weight with temperature is measured, at the same time observations are made about the reaction to heat and the effect on the shine with these changes. A low resistance to the heat changes is a necessary condition for the installation of stone in open spaces.

2. Resistance to ice. The loss of weight as a percentage of material is measured at low temperatures . As in the previous test the low loss of weight is necessary for the use of stone in open spaces .

3. Expansion Module. This type of test determines the expansion coefficient of the material as a function of the measuring plane and a function of the change of temperature. Even though nowadays the use of these tests is very limited , however the importance of taking into account this coefficient in the planning of installation is beyond doubt, up to such a point that not using the mentioned result leads many times problems in installation with serious economic damage.

4. Resistance to cladding. The suitability of installation of a material in a wall cladding should be judged in these types of tests.

5. Electric characterization of product. The determination of electric resistance of a stone material is done following the standard system of including the material in an electric circuit and then measuring the resistance. This parameter is increasingly important for the use of stone in environments with a propensity to the generation of static charge, computer centers, banks, surgery theatres, highly computerized offices, etc.

6. Sound insulation. These tests measure the capacity of a stone to insulate sound, the determination of insulation capacity of a material is an expensive test so its use is restricted to places where this parameter is very important, hospitals, sound laboratories, some hotels, etc.

7. Slippage tests. These tests try to measure the resistance to slipping of a floor, they are done with dry and a wet material. for this several types of stimulators of shoe floors are used. Usually there is a threshold point which is necessary to cross. However, it must be mentioned that the resistance to slipping depends not only on the material but also the surface treatment (polished, honed, bush hammered, sanded, etc.)

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