Most stone radioactive radiation intensity is within standard values

Why is the decorative material radioactive? Zhang Songrang, the radiation environmental supervision and management station of Shaanxi Province, said that any substance and organism on the earth contains natural radionuclides. In all rocks, there are different levels of radionuclide uranium, radium and thorium. Potassium. The radionuclide content of igneous rocks (such as granite) is slightly higher than metamorphic rocks and sedimentary rocks, but the high or low radioactive radiation intensity of stone products cannot be generalized. It is also directly related to the place of origin and the geological structure.

The tiles are made of clay, mixed with sandstone, slag or industrial waste, and the glaze on the surface of the brick (multiple rare earth elements) is sintered. The radioactive radiation intensity of the tile is determined by the radioactivity in the material and the glaze, so the radioactivity of the tiles of different origins and varieties will also vary. Recently, the provincial radiation environmental supervision and management station conducted free testing on 100 stone tile products sold locally, and the pass rate of sampling inspection was high, indicating that the radioactivity of stone products in the market is within the normal range.

Class A products, can be used with confidence

According to Zhang Songrang, in the National Standard for Radionuclide of Building Materials issued in 2001, decorative materials were classified into A, B and C products according to different radioactive levels. Among them, the production, sales and use of Class A decorative materials are not restricted; Class B decoration materials are not applicable to Class I civil buildings (refers to buildings such as houses, elderly apartments, nurseries, hospitals and schools; in addition, Class II civil buildings refer to The interior finishes of public buildings such as shopping malls, stadiums, bookstores, hotels, office buildings, libraries, cultural and entertainment venues, exhibition halls and public transport waiting rooms can only be used for exterior finishes of Class I civil buildings and everything else. The interior and exterior finishes of the building; Class C decoration materials can only be used for exterior finishes of buildings and for outdoor use.

Zhang Song asked consumers to ask the merchants for the inspection report of the provincial (autonomous region, municipality) level radiation testing unit when purchasing decorative stone products. It is necessary to pay attention to whether the report is the original. The name of the business and the name of the stone in the report should be consistent with the name of the merchant and the purchased product. In addition, the type of the test result should be noted. If it is a type A product, it can be used with confidence.

Environmental tips

Vinegar and pineapple remove the finish

Put the appropriate amount of vinegar into the glass container and place it in a ventilated place in the house. Not only can it evaporate the moisture to protect the wall coating layer, but also absorb the residual decoration aftertaste. In addition, placing pineapple in the room can absorb the residual paint smell, because it is a crude fiber fruit, which can exert a certain adsorption effect on the paint.  

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