Pay attention to the fact that there is no tempere

2022-08-13
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Pay attention to the fact that there is no "tempered heat-resistant glass"

most consumers know that ordinary glass cannot be used for high-temperature heating, but very 4. Taking the whole experimental process of computer control, many consumers do not understand the difference between tempered glass and heat-resistant glass. They mistakenly use some tempered glass containers for cooking purposes and heat them in microwave ovens or ovens, resulting in injuries after the explosion of tempered glass containers. Yesterday, the China Consumer Association issued a consumer warning that there are no so-called heat-resistant tempered glass products or tempered heat-resistant glass products in the domestic market. Consumers should not be misled when purchasing

"in some fairs, some merchants use ordinary glass containers to pretend to be tempered glass, while others use tempered glass to pretend to be heat-resistant glass products, which ordinary consumers simply cannot distinguish." Professor Shi Xinyong of China building materials inspection and Certification Center told that in fact, the manufacturing cost of tempered glass containers is 10% higher than that of ordinary glass; The manufacturing cost of heat-resistant glass containers is the highest, which is about 30% higher than that of our company's pressure shear testing machine

after the investigation of the China Consumer Association, there have been many reports of injuries caused by self explosion of tempered glass in domestic and foreign media. Japan and other countries have clearly stipulated that tempered glass cannot be used in microwave ovens and ovens. However, at present, the labeling of glass products in China's market is not clear. Some operators also deliberately confuse concepts, expand the functions of tempered glass and even ordinary glass, and create concepts such as "tempered heat-resistant glass", which makes it very easy for consumers to buy and misuse

according to experts, the reason why tempered glass is easy to self explode is that nickel sulfide, which cannot be found by the naked eye, is mixed in the manufacturing process. This nickel sulfide will cause the tempered glass to expand greatly under the change of ambient temperature, which does not match the glass, resulting in the phenomenon of glass self exploding flyer

China Consumer Association reminds consumers: heat resistant glass products should be labeled with corresponding signs, indicating the use temperature, scope of use, etc. consumers should pay attention to the above information when purchasing and using. At present, there are no so-called heat-resistant tempered glass products or tempered heat-resistant glass products in the domestic market. Consumers should not be misled when purchasing. In addition, the China Consumers' Association also reminded glass Cookers' production and operation enterprises and catering enterprises to clearly indicate the material, use environment and safety precautions of the products, so as to provide consumers with glassware that meets the safety requirements in order to meet the requirements of gb/t 8358 (2) 014 "method for determining the actual breaking force of steel wire ropes"

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