CPC G01N 21/658 (2013.01) [C03B 18/18 (2013.01); C03C 3/087 (2013.01); C03C 4/02 (2013.01); C03C 4/082 (2013.01); C03C 4/085 (2013.01); G01N 21/552 (2013.01)] | 20 Claims |
1. A method comprising:
directing light from at least one light source toward soda-lime-silica based glass on a float glass line; and
determining whether a nickel sulfide related defect is present in the glass based on an emitted value, a refracted value, a re-emitted value, a transmitted value, or a reflectance value,
wherein at least one of the emitted value, the refracted value, the re-emitted value, the transmitted value, and the reflectance value is outside of the visible spectrum.
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