Tempered glass, known for its high tensile strength and the ability to shatter into small glass particles without causing injury, is widely used in daily life. While you can purchase it everywhere, the market is filled with a mix of genuine and counterfeit tempered glass. How can you tell if glass is truly tempered, and what should you be aware of when dealing with tempered glass? Here's a guide to help you out:

The national requirement mandates that tempered glass must have a 3C marking. Simply put, check for the presence of the 3C marking. If a standard marking is present, visit the official website of our Quality System Certification Management Center. Click on "Certificate Inquiry," select the manufacturer, which refers to the product's manufacturer, and ensure the search result matches the testing standards. If the information displays "No certificate found," it means the product does not meet the standards. You can also enter the anti-counterfeiting mark into the "Certificate Number" field for a more accurate search. Even if the 3C marking is verified as genuine on the official website, it does not necessarily mean the glass is tempered, as non-tempered glass can also have a 3C marking. Here, we can use a fruit knife to scrape the 3C marking. If it's easily scraped off, it's a fake; if not, it's genuine. The 3C marking that is printed onto the glass cannot be removed once it goes into the tempering furnace, whereas those printed later can be scraped off with ease.

Previously, it was about pre-distinguishing whether the glass was tempered. Now, it's about how to determine if the tempered glass failed the tempering inspection post-production. After the tempered glass is crushed, the particle size must adhere to strict specifications, within a 50mm x 50mm range. If the particles are too large, consumers can file a complaint with the relevant department to exercise their consumer rights.

Tempered glass is made by subjecting regular glass to a tempering furnace, which alters the intermolecular forces within the glass, thereby increasing its strength. However, tempered glass is also vulnerable, particularly at its four corners. If these corners collide with a hard object, they are prone to shattering, which can cause injury if not handled with care. Therefore, it's important to be cautious when moving it, especially around the corners. For safety, it is recommended that when purchasing, you insist on the glass being ground, especially the four corners. Grinding the edges slightly, creating a 1 cm rounded edge, not only looks better but also does not affect its use. For the glass edges, besides rounding off for round tables, an oblique edge is sufficient for other shapes.