How to Identify True and False Low e Glass?
1.Single chip Low-E is easy to distinguish, as long as a multimeter is used to measure the surface electronegativity of the glass. If it is tens of ohms (related to the distance between the measuring pen tips), it is Low-E.
2.Hollow glass without window frames, such as curtain wall glass, can be measured using a multimeter at the edge of the glass where sealant is applied if using online Low-E glass.
If it is offline, Low-E cannot be measured in this way because the Low-E wax on the edge has been removed. At this time, it can be observed whether there are any traces of film removal.
3.The method of using a lighter flame to see shadows is not accurate, and can only roughly distinguish the position of the membrane surface when it is known to be Low-E insulating glass.
4.The most accurate method is to determine whether the Low-E is hollow and whether it is high-quality Low-E or low-quality Low-E - by smashing glass to measure surface resistance or spectral data.
In summary, the identification method for single piece Low-E glass is relatively simple, and it is difficult to accurately determine hollow Low-E without disassembly. Currently, many researchers are researching more practical detection instruments.
In practical engineering applications, we can make a comprehensive judgment through various methods mentioned above, but the most accurate way is to recommend randomly selecting samples from actual products and sending them to authoritative testing departments for testing. This method can not only identify whether it is Low-E glass, but also test its performance.