How to identify moldy glass products

1、 Mouldy glass:
1. White fog and white spot: the mildest mildew on the glass surface due to storage time, air humidity or glass quality problems.
2. Rainbow: When the white fog and white spots appear for a long time and are not treated in time, a rainbow will be formed. At this time, the mildew still stays on the surface of the glass and does not corrode into the glass.
3. Sulfur change: the appearance characteristics of glass mildew are the same as that of slight mildew, but the alkaline mildew component on the glass surface has been corroded into the glass, which belongs to serious mildew.
4. Paper print: like sulfur change, mildew occurs outside and inside the glass, which is serious mildew.

2、 The reason for moldy glass products is that the data about chemistry is too abstract and formulaic, so we can not expand it here. You can search Baidu by yourself.

3、 Identification and inspection method of mildew:
Visual appearance measurement is the most concise and feasible method. Place the sample in the reflected and transmitted light to observe whether there are spots and fogs on the glass surface under the concentrated strong light. These spots and mists cannot be wiped off with cloth or water. The glass with the above phenomenon indicates that the sample has become moldy. If a few spots and mists are observed with the naked eye under concentrated strong light, they are slightly moldy. If you observe a lot of spots and mists with the naked eye under concentrated strong light, they are moderately moldy. If some spots and mists are observed with naked eyes without concentrated beam irradiation, they are serious mildew.