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Select the spectrophotometer that you will use to collect measurements for this media configuration.
Make sure the spectrophotometer white calibration tile serial number matches the serial number of your spectrophotometer (if they don't match, you will get inaccurate color measurements)
Make sure the spectrophotometer white calibration tile is clean with distilled water and soft lens tissue.
Note: For the latest color standards, the "M1" measurement condition is recommended.