The standard to identify quartz stone Advantages of quartz stone 2020-11-18
The standard to identify quartz stone Advantages of quartz stone

1. Hardness: The surface has a Mohs hardness of 7. The simple detection method is to observe the damage point by squeezing with an iron sharp object, without scratches.
2, density: 2.37-2.5
3. High temperature resistance: 300℃. Place a stainless steel cup filled with boiling water on the countertop for 30 minutes, and the color will not change. Or put a lighted cigarette butt on the quartz stone and it will not change color.
4. Stain resistance: Use soy sauce, vinegar, and coffee to drip onto the quartz stone, wipe it with detergent and water after 24 hours, and observe that it does not change color.

5. Environmental protection: It can provide green environmental protection certification tested by authoritative departments.
6. ​​Fire resistance: 10mm×30mm quartz stone thin strips cannot be burnt on an open flame.
7. Acid and alkali resistance: etch the surface with 3% hydrochloric acid solution or 100g/L citric acid solution, 30g/L sodium hydroxide or potassium hydroxide solution, and there is no obvious visible change on the surface. Stone industry standard
8. Water absorption: less than 0.04%. Sprinkle a little water on the surface of the quartz stone for 24 hours and observe that the color does not turn white.
9. Flexural strength: The standard is SN/T0308-1993.
10. Compressive strength: The standard is SN/T0308-1993.
11. Thermal expansion: The standard is SN/T17748-1999.
12. Radioactivity limit index (no radiation): The internal and external exposure index conforms to GB6566-2001. .
13. Luminance: Use a photometer to detect over 60 degrees.
14. Appearance: clear and not turbid. The color is uniform. Flatness: within 3000 mm ± 0.5 mm; thickness: 12 mm board ± 0.5 mm, 15 mm board ± 1 mm, 20 mm board ± 1.5 mm.

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