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Color Testing Method and Correlation for Preforms and Bottles
PTC-00005
Last updated:
January 2007
This procedure is to ensure that the bottle color is correct by testing the initial "first phase" of the process, such as the injected part also known as the preform. If the preform is the correct color, then when reheated and then blown into a bottle, the bottle should be the correct color. A correlation is needed to find the limits of the preform to achieve the allowable bottle color range.
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