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This document discusses various types of glass defects that can occur during production, including: 1) Contamination from cullet or raw materials such as metals, porcelain, lead oxide, and redox contaminants. 2) Batching errors or poor homogeneity that can lead to unmelted silica or cords. 3) Contamination during melting from refractory wear, volatilization, or devitrification. 4) Contamination during forming, handling, annealing or from the atmosphere. The document outlines analyzing samples using
- Author
- Hardik
- Language
- EN