This accessory universal test components UTC is for colorimeter model CR7/8/9 and TS70 series spectrocolorimeter to check the color difference delta E value for liquid, paste, powder, and granules.
Here are the images for UTC.
Here are some others images for this UTC to measure liquid or powder or granules color test with CR8.
CR8 colorimeter with UTC for powder
TS7020 colorimeter with UTC for Peanut butter
CR8 colorimeter with UTC for Plastic particles