Shocked! Marble Radiation Is Even Smaller Than Wood!
The inspector first tests the radioactivity of the submitted stone. The inspector crushes a sample of homemade marble, called the Oriental Rose, into a lead chamber for inspection. After six hours, the result came out!
Inspector: Measures the harm of radiation to the human body, mainly including internal radiation
formed by radiation inhalation into the human body, and external radiation. According to the industry standard of national standard 6566-2010 for building materials, we now require that the internal radiation index of the Class A radioactive index is 1, and the external radiation index is 1.3. The test we made this time was a homemade marble named Oriental Rose. The result of this test was 0.02 for internal exposure and 0.11 for external exposure, which met the standard requirements.
According to the same test method, the results of the inspection of imported marbles were 0.07 for internal exposure and 0.04 for external exposure.
Look at the inspection of tiles -
Inspector: The inspection results of imported tiles for internal exposure index 0.59 and external exposure index 1.18. The inspection results of domestic ceramic tiles submitted for internal exposure index 0.32 and external exposure index 0.54.
Whether it is the inspection of domestic tiles or the inspection of imported tiles, the radioactivity exceeds the natural marble samples submitted. However, the radioactivity of the inspection tiles is within safe limits.
Inspectors: All are in line with the national Class A radioactive index and belong to construction materials that do not limit their use.
The test results showed that the average water absorption rate of ceramic tiles submitted to China was 5.7%, that of imported ceramic tiles was 5%, the average water absorption rate of imported marbles submitted to the inspection was 0.36%, and that of domestic marble submitted was 0.25%.
In other words, in the waterproof performance, the imported tiles submitted for inspection are better than the domestic tiles, and the domestic marble submitted for inspection is more waterproof than the imported marble.
Whether it is tile or marble, abrasion resistance is an important indicator for long-term use.
After inspection, the average value of the abrasion resistance of the imported marble submitted is 21 centimeters per centimeter, and the average value of the domestic marble submitted is 29 centimeters per centimeter. The domestic marble submitted for inspection has a lower abrasion resistance than imported marble.
The average value of the abrasion resistance of the imported tiles submitted for inspection is 98 cubic millimeters, and the ceramic tiles submitted for inspection are 131 cubic millimeters. The ceramic tiles submitted for inspection have a lower degree of abrasion than the imported tiles.
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