Southeast Scientific Sharing: Model-F colorimeter must ensure the cleanliness of the color scale as much as possible. The color scale can be cleaned with a soft lint-free cloth or cotton swab. Please do not remove the Model-F colorimeter filter from the color standard holder. If you accidentally take out the filter, the Model-F colorimeter must be placed in its original position, otherwise it will affect the accuracy of the Model-F colorimeter test results. Routine maintenance of Model-F colorimeter
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