Home decoration marble and artificial stone which kind of stone is good
In the "natural stone products radioactive protection control standards", according to the radioactive material than the physical activity is divided into three categories: Class A: the scope of use is not restricted; B: not used in the room, interior, Other buildings inside and outside the surface; Class C: can be used for all the exterior of the building. According to the experts of the Beijing Institute of Geology, the experts of the Beijing Institute of Geology emphasize that consumers must purchase the "CMA Radiation Analysis Test Certificate" and the scope of application of the products when they purchase stone decoration materials by the State Technical Supervision Bureau. As the radioactive material is not uniform, the same rock with different rock phase rock radionuclide content will be very different, sampling is difficult to partial general.
Marble is as radiant as other building materials. According to the experts, radioactive exists in all substances, including water and air. Like our life can not be separated from the luminous table, TV, computer monitor screen, have a certain radioactive, but they are traceable, harmless to the human body, or little harm. Radioactive is not surprising, do not have to panic. Similarly, there are radioactive natural marble, the most critical is whether you buy marble is exceeded. Where you need the marble decoration.
Marble is from the sedimentary rocks in the limestone by the temperature and pressure and other external factors from deterioration. Because of its composition of calcite and dolomite radioactivity is generally very low, so by the low radioactive limestone metamorphism of marble, radioactivity is also very low. Conclusion: Natural marble radioactivity is generally low, you can rest assured that use.
The radioactive nature of the stone (marble, granite, artificial stone), the National Institute of Building Materials Standardization Institute experts believe that in nature, natural radioactivity is an objective reality, the same, natural stone products also exist radioactive, the key is to see if it is more than National standards.
