Appearance and feel can be distinguished: Buying crystal glass tableware can distinguish glass, leaded crystal glass, and lead-free crystal glass by sound, feel, and appearance.
There are two types of crystal glass containers: lead-free crystal glass and leaded crystal glass. Because the color, texture and gloss of ordinary glass are not ideal. Adding lead to glass can increase the refractive index of glass. It looks like crystal, so it is called crystal glass. Some decorative pieces, crystal glasses, crystal lamps, etc. are made of leaded glass. Made of.
In the European standard, crystal glasses are classified into lead-free, medium-lead and high-lead. The content of lead oxide in medium lead glass reaches 24%; the content of lead oxide in high lead glass reaches 36%.
If the crystal glass container is produced in accordance with EU standards, no matter what kind of product it contains, there are strict international regulations and it should be safe for the human body. However, due to the lack of standards in our country, we cannot rule out the situation that individual manufacturers have a large amount of randomness and it is difficult to guarantee product quality.