Ceramic tile of radioactive element

Radioactive elements of ceramic tile? With friends on the web site owner comment mentioned this problem, in fact, anything in life radioactive, just see the emission standard can reach the limits of the human body can withstand, the country also has a standard. （ Elements of ceramic tile) 1, the ceramic tile also have radioactive material, not & other; Absolute health safety & throughout; 。 2, according to the newly revised 'the public construction engineering indoor environment pollution control norm' regulation, indoor decorative tile should radioactive detection and control, test results are divided into A, B, C three categories. Only A kind of standard of ceramic tile can be used for home interior decoration. 3, the appearance of A, B, C three types of ceramic tile, it is hard to see the differences. According to the personage inside course of study, A, B, C three types of ceramic tile on the market at present the price difference is very big, from each 2 yuan to 10 yuan, ceramic tile area is larger, the greater the difference. Don't know the market of consumers, probably because the price factors and bought two class B and C is not suitable for use in indoor decoration of ceramic tile. So can't keep the price as the main measure of the decorating. The raw material of ceramic tile is powder and zircon powder, long sand powder, quartz powder, etc. , these radioactive materials. Modern manufacturing process, floor tile, produced by the so-called radiation is negligible, but it also restricted to some qualified manufacturers, as for other manufacturers to avoid erosion, facilitate decontamination, can in ceramic tile surface coating a layer of & other Glaze & throughout; （ Glazed tile) , add the zircon sand as corrosion inhibitors, zircon sand shot of nuclide content is high, the floor tile of the produced any radiation did not know. Therefore, we in the choice of floor tile, first choose is normal manufacturer of production of floor tile, so that the quality can be guaranteed. Glazed ceramic tile mostly from potassium mineral raw materials, such as feldspar, mica, etc. , these minerals contain a certain amount of uranium and radon and other radioactive substances. In the after crushing, sintering and other physical and chemical process there are still radioactive. And smooth surface in order to make the ceramic tile, raw materials tend to add high radioactive zircon sand, which makes part of the ceramic tile with high radioactivity. But the national building materials test center ceramic and stone detection department senior engineer Hu Yunlin, & other; Ceramic tile & cancer throughout; Clearly have been exaggerated. Ceramic tile, Hu Yunlin explained, in the process of production to achieve the effect of whitening and brightening, manufacturers tend to add just the right amount of zirconium silicate. In fact, in the toilet, bathtub, sink, etc. Almost all the production of sanitary ware, will join this kind of material. Although it itself has no radioactivity, but in the process of refining with traces of radioactive nuclide, mainly potassium, sodium, the three kinds of radium. And some of the enterprise for producing super white ceramic tile will add excessive zirconium silicate, cause radionuclide is overweight, this is the root cause of concern. “ Add a small amount of zirconium silicate porcelain production process is a kind of modern production technology, has a history of more than ten years in our country, it is comparatively mature technology. ” Hu Yunlin, said the radioactivity of ceramic tile, under normal household environment for a year of absorbed dose, far less than an X-ray examination, so need not worry completely. To this, the national standardization technical committee on building and sanitary ceramics, deputy secretary general wang also said that ceramic tile radiation to human body is less than a minute talking on the phone radiation generated by the impact. So consumers can still do not need to worry. （ Elements of ceramic tile)
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