The China Indoor Decoration Association's Indoor Environmental Monitoring Committee issued a warning against the contamination of ceramic tiles to remind consumers to pay attention to the following when selecting tiles:
1. Check the certificate. When purchasing stone and building ceramics products in the building materials market, they must ask the distributors for radioactivity testing reports. They should pay attention to whether the report is original, whether the name of the business name in the report is consistent with the name of the purchased product, and whether there is a test result category.
2. Test weight. Good quality tile components are all heavy and relatively solid. This is mainly due to the selection and proportioning of raw materials. The better the tile is, the greater the mechanical pressure during processing, so the weight is also heavier.
3. Than the specifications. Good quality tiles have the same size, uniform thickness, no corner defects, no bumps, and other defects. The error of side length does not exceed 0.2 to 0.3 cm, and the thickness error does not exceed 0.1 cm.
4. Look at "face." The better the tile surface, the smoother it is. Glazed uniform, smooth, bright and clean, bright, consistent with the color of the top grade; the surface of particles, not clean, different shades of color, uneven thickness and even uneven, cloudy clouds are like a defective.
5. Heavy color. The tiles of good quality have the same color and there is no color cast. The main reason is that they use good raw materials. After a scientific ratio, the tiles have a strong stability. So when buying tiles, you must pay attention to whether the color mechanism is the same.
6. Listen to the sound. With the left thumb, forefinger and middle finger clip a corner of the tile, easily hanging down, with the right index finger hit the lower part of the tile, such as the voice clear, sweet ears for the top grade, such as sound boring, stagflation is the next product.
China Indoor Decoration Association Indoor Environment Monitoring Committee puts forward the following countermeasures:
1. In the office building and home renovation, it is necessary to properly match and use decorative materials. It is best not to use ceramic tiles in large areas of the room.
2. In order to prevent the indoor radioactive material from being too high, it is better to conduct the radioactive background test before the new house decoration, which will help the selection of ceramic tile varieties.
3. The best method for ceramic tile products that the business does not have a test report is to ask experts to use advanced instruments for radioactivity testing before deciding whether to purchase.
4. After the room has been renovated, experts can be invited to the site to inspect it. If the radioactive index is too high, measures must be taken immediately to replace it. If the level is not high, you do not need to remove it, keep the room often ventilated or use an effective air purification device.
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