How to Store, Use and Clean Your Calibration Tiles
Maintenance and service
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To provide accurate data, your spectrophotometer needs to be well-maintained. This includes calibrating it daily, at the start of a shift, or before beginning any important measurement job. Calibration is important both for color measurement and to maximize inter-instrument agreement.
Here’s what you need to know about calibration tiles.
The different colors of calibration tiles
Absolute black is measured using a “zero reflectance” or “black trap” attachment that absorbs all light. For white, the readings of a particular, serialized reference tile are stored in each instrument. Both the tile and trap need to be scrupulously clean to avoid false readings and to also protect the spectrophotometer and subsequent samples from contamination.
In addition to black and white, blue or green tiles are commonly used as diagnostic references.