Abstract: In float process, glass formed in tin bath, which caused of tin penetration.Tempering bloom would appear when glass that had tin infiltration over a certain amount was tempered, thus affecting the appearance quality of glass.In this paper, the relationship between the formation of tempering bloom and the amount of tin infiltration was analyzed.The rapid qualitative detection methods were recommended to avoid waste in subsequent processing.The measures to reduce the amount of tin infiltration were discussed to guide the glass production.

Key words: glass;tempering bloom;amount of tin infiltration;detection