How can we distinguish between tempered glass and non-tempered glass in the Foshan tempered glass factory?
Release time:
Jan 06,2025
To distinguish between tempered glass and non-tempered glass, you can use the following methods:
1. Observe the marks and edges
Check for the 3C mark: Tempered glass usually has a 3C mark on the edges, which is a national mandatory certification mark. This mark is printed with high-temperature ink, and after high-temperature firing, the ink becomes very solid and cannot be scraped off with a finger. If the mark can be wiped off by hand, it can be determined that this is not tempered glass.
Observe the edge treatment: Tempered glass undergoes edge grinding during processing, resulting in relatively smooth edges. Due to deformation during the tempering process, slight deformation marks may be visible from the side. In contrast, the edge treatment of non-tempered glass may be rougher, and deformation is not easily noticeable from the side.
2. Observe the shape of the fragments
Tempered glass fragments: When tempered glass breaks, the fragments are granular, with blunt edges, making them less likely to cause injury.
Non-tempered glass fragments: When non-tempered glass breaks, the fragments are large and have sharp edges, which can easily cause injury.
3. Observe the reflection of objects
Tempered glass: Stand the glass upright and observe the objects reflected on the glass. Look from different angles; if the objects show regular wave-like distortion, it can be determined that this is tempered glass, which is a result of the tempering process.
Non-tempered glass: The objects reflected on non-tempered glass usually do not show wave-like distortion.
4. Professional testing
Although the above methods can help to initially distinguish between tempered and non-tempered glass, the most accurate method is to have it tested by a professional testing agency. These agencies typically have advanced testing equipment and professional technicians who can accurately determine the degree of tempering and quality of the glass.
In summary, by observing the marks and edges, the shape of the fragments, the reflection of objects, and through professional testing, one can effectively distinguish between tempered and non-tempered glass. When selecting and using glass, it is important to choose the appropriate type of glass based on specific needs and scenarios.
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China Guangdong Haibo Special Glass Technology Co., Ltd. Unified Social Credit Code: 91440101MA5AT33G12 Contact Numbers: General Manager Cao, 13178822749; General Manager Wei, 13533794186.