With the improvement of living standards, the people to the requirements of the living environment more and more high, ego to protect consciousness also more and more strong. Adornment material, the radioactive factors also then caused the people highly, especially of material of Natural stone of radiation factor. And according to reporter in the related departments to understand, in fact most of the Natural stone and tile radioactive radiation intensity is in the normal range, that is, in the national standard that limit ratio, to human body in without any harm. However, there are also part of the stone material manufacturer standardization glance, will be no sense radioactive factors of product quality as the evaluation index, thus lead to individual high radioactive stone products into the market, if used to the bedroom interior surface, will likely cause harm to human body influence or even.
Most radioactive radiation intensity in the standard stone products within
Why decoration materials will be radioactive? Shaanxi environmental supervision and radiation data to a song introduces, the earth and all creatures any material with natural radioactive nuclide in all rocks, there are different levels of radionuclide uranium and thorium, potassium, radium. Igneous rock (such as granite) of radionuclide content than metamorphic sedimentary rock, a slightly higher, but some stone products radioactive radiation intensity of high or low also cannot treat as the same, and also in place of origin and in the geological structure has the direct relation.
Ceramic tile clay, in mixed with sand, slag or industrial wastes and other materials, with glaze surface of the brick (contains rare earth elements by sintering and into.) Ceramic tile radioactive radiation intensity height decide in materials and coating of radioactive and glaze from different areas and different kinds of ceramic tile radioactive vary. In the near future, the province to the local environmental supervision and administer station radiation sales of the 100 stone material ceramic tile of products were free, sampling percent of pass is higher, testing that stone products on the market are radioactive within the normal range.
A kind of product can be at ease use
According to zhang song let introduction, 2001 promulgated for implementation of the construction material radionuclide national standard ", according to the different radioactive level will be adornment material is divided into A, B and C 3 kinds of products. Among them, A kind of adornment material production and use scope unrestrained; B kind decorates material not used for Ⅰ kind of civil building (it is to point to as house, an old, day care centers, hospitals and schools and other buildings; in addition, Ⅱ kind of civil building means such as shopping malls, stadium, bookstores, hotel, office building, library, cultural entertainment, the exhibition hall and public transportation waiting room and public places such as building) interior surface, can only be used for Ⅰ kind of civil building outside facing and other buildings of all inside and outside facing; C decoration materials can be used for the building only surface decoration and outdoor other purposes.
A song let suggest that consumers, buying adornment stone products to the businessman to the province (autonomous region, municipality directly under the central government) radiation detection unit level of the test report. Should pay attention to whether the original report for the name and stone commodity should be businessman with stores and buy commodity conform to, and to pay attention to test results, if is A category of products, can be at ease use.
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