A study of quality improvement by heat by heat thit has split into 3 experimental groups a group split from the temperature used in the experiment. A group of 300-310 degrees heating value. Stand 1 hour 30 minute time, temperature, and 2 hours of Group B to heat 400 degrees Celsius. Stand 1 hour 30 minute time temperature and 2 hours and Group C, heat, 500° c for a period of 30 minutes, 1 hour and 2 hours to learn to change color with their UV thit mail-Aston Villa XI Foro boen call specification-meter. (UV-Vis-NIR Spectrophotometer) found that from an analysis by a UV-video call centre-meter specification boen! In the range 400-800 nm spectrum found the trial prior to absorb in the range 450-650 nm. Fe3 + was an experiment by experimental burning heat temperature 300° c 310-pixel value. I found that the color of the sample had a greater brightness. Spectral changes cannot be found to absorb light and heat temperature 400° c for a period of 2 hours found that Purple light turns yellow and light suck period were found in the range 300-375 nm Fe4 found.
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