Tiles also have radiation! do you know?

Tiles are often used in our homes, but you don't know that tiles actually have radiation. Let's hurry down and watch!

The raw materials of ceramic tile products are derived from ore, quartz powder, long sand powder, zircon powder and other minerals. These raw materials emit a special kind of radiation during the metamorphosis process. This phenomenon is called radioactivity. Many people in the ceramic industry have said that the raw materials of ceramic tiles are made of natural stone, and there is more or less radioactivity. In order to facilitate decontamination and avoid erosion, manufacturers usually apply a layer of "glaze" on the surface (the tile is also called glaze). Tile).

Tile radiation refers to the phenomenon that tiles contain radioactive materials, and the radioactivity of glazed tiles is more obvious. The glazed tile is a layer of glaze applied to the tile base. The tile surface has various colors and rich patterns and patterns. Most of the glazed ceramic tiles are derived from potassium-containing minerals such as feldspar and mica. These minerals contain certain radioactive materials such as uranium and potassium. It is still radioactive after physical and chemical processes such as pulverization and sintering. In order to make the surface of the tile smooth, the higher-activity zircon sand is often added to the raw material, which also makes some tiles have higher radioactivity.

First, look at the tile radiation according to the color

Remind consumers that the whiter the tiles, the greater the radiation, the stronger the radiation of the ultra-white bricks in the polished tiles, so whether it is a first-line brand or a third-line brand, buy tiles, especially floor tiles, don’t buy too white, hazard A lot smaller. The whiter the tiles, the more often they contain more supplemental additives, which are generally more radiant. The radiation produced by brighteners such as zirconia can endanger human health, while the ultra-white bricks in polished tiles are more strongly radiated. Therefore, unless the glazed glaze itself is white, the large white brick is not suitable for large-area paving.

The difference between big brands and small brands is not the quality of the products but the quality. It may be bad when the first-line bricks buy 100 blocks, and the third-line brands will be bad. But it must not be said that small brand brick radiation is more powerful than big brands.

Dark tile radioactive pollution is more serious. The darker the tiles, the more radioactive materials they contain, and the greater the radiation. Among all the glazed tiles, the red is the most serious, and the radioactivity of the tiles such as General Red and Rhododendron is higher than other colors.

Second, the radiation produced by qualified tiles will not endanger human health

China's national mandatory standard "Limits of Radionuclides for Building Materials" (GB 6566) divides the radioactive level of building decoration materials into three categories: A, B, and C.

Class A decoration materials have the lowest level of radioactivity, and their production, sales and use range are not limited.

Class B decoration materials are not to be used in the interior of Class I civil buildings such as houses, hospitals, schools, etc., but can be used for the exterior finishes of Class I civil buildings and the interior and exterior finishes of all other buildings.

Class C decoration materials can only be used for exterior finishes of buildings and for outdoor use.

Related reading: decoration radiation source big secret experts explain

Third, the tile purchase strategy

1. If you want to choose bricks, it is best to choose matt bricks.

Try not to decorate the interior with tiles when decorating. If you want to choose bricks, it is best to choose matt bricks; if you use polished tiles, usually try to open small lights in your home, try to avoid direct light or affect the eyes through reflection.

2, buy ultra-white bricks alert to excessive zirconium silicate

In the production process of polished tiles, in order to achieve the effect of whitening, zirconium silicate will be added in an appropriate amount, and some enterprises add excessive amounts to produce ultra-white bricks, which is the main cause of excessive radiation of ceramic tiles.

3, choose the tile should be careful to check the inspection level

According to industry sources, the public must look at the certification provided by the manufacturer when purchasing ceramic tiles: radioactive level detection, which is divided into three categories: A, B, and C. Among them, Class A is the best. The tile packaging will indicate: "Radioactivity level: A ".

Fourth, how to detect whether the radiation received by yourself exceeds the standard

You can use the radiation detector at home for testing. Note that if the selected detector is certified by an authoritative organization, it can produce a product test report and a product with an energy response of 1.0±0.15; even if we are not exposed to any radiation, Also in a radioactive environment of 0.13 μSv/h, this upper limit of the radiation background is a safe normal. Therefore, the radiation level of the decoration materials or the radiation level of the specific activity environment is safe as long as it is not significantly higher than the background level. According to the public exposure control standards proposed by the International Atomic Energy Agency and the World Health Organization, the total amount of radiation received per person per year should not exceed 1000 μSv, as long as the total amount of radiation per year is not greater than this standard, it is also safe.

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