Yellowness of paper or board

The influence of temperature, chemical reactions, radiation, etc. can make white or colorless materials such as art equipment, paper, and paints yellow.

The yellowness number indicates the change in the yellow value of a sample due to one or more of the above-mentioned reasons. This method is used to describe the yellowness of near-white or near-colorless materials.

The yellow value of a sample is calculated based on the standard color values X, Y, and Z. A color-measuring device is used to measure these standard values.

Suitable sample matrices
Paper and board
Typical turnaround time
3 weeks after receiving the samples
Available quality systems
Accredited test method
Device types

Pricing and online order

Price per sample (Excl. VAT):
64 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Samples are entered during checkout.

Our experts review all orders to ensure the testing method is suitable for your needs and samples.

Questions? We're happy to help.

Questions? We're happy to help.

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Answering the following questions helps us prepare an offer for you faster:

  • How many samples do you have and what is the sample material?
  • Do you have a recurring need for these tests? If yes, how often and for how many samples at a time?

Have questions or need help? Email us at or call +358 50 336 6128.