Are Granite Countertops Radioactive
Granite has radiation to human body, but very weak, this part radiation can be ignored basically.
1. Compared with other sources of radiation inside and outside the house, the radioactivity of granite tablates poses little risk to the human body.In the past few years, regarding the natural granite countertops used in the house, the radioactivity of the granite countertops posed little risk to the human body for other sources of radiation inside and outside the house.
2. Granite is a kind of stone with high possibility of radioactive elements, but not all granite contains high radiation.General circumstance granite won't be decorated as material inside the bedroom, the stone material that interior decorates is marble more, the possibility that its radioactivity element content exceeds bid is small.
3, in fact, stone generally radioactive, the key depends on the content of radioactive elements.Should be based on detection data, scientific view.All stone materials are safe as long as they do not exceed the standards of "radionuclide limit of building materials" (gb6566-2010).
4. This standard divides natural facing stone into three grades according to the radiation intensity.Class A decoration materials are not restricted in the scope of production, marketing and use, and can be used for decoration anywhere.
5, class B decoration materials can not be used for civil building interior decoration, but can be used for civil building exterior decoration and all other building interior and exterior decoration.
6. Class C decoration materials can only be used for exterior decoration of buildings and other outdoor USES. Sales shall be restricted, that is, they can only be used for outdoor decoration.
7, according to the test, different colors of the stone its radioactivity is different, generally high dark radiation, light radiation is low.The highest are red and green, and the lowest are white and black.Accordingly, should choose red, green or the granite variety that contains red big spot cautiously.