For the ratification of Qlip’s own routine laboratory, where more than 13 million milk samples are analysed every year, over 160,000 calibration and control samples are analysed to determine that our instruments are measuring the correct values.

Qlip has 30 years of experience in the development and production of dairy control samples and calibration series. More than 80 production facilities worldwide use our products to calibrate and control their mid-infrared instruments. Various respected laboratories use our products to ensure the quality and reliability of their analysis results.

Measuring instruments are sensitive to external influences, so daily monitoring of the performance of the measuring instrument is essential. Qlip has a wide range of control samples available for daily control.


  • Raw milk (Cow, Goat and Sheep)
  • Cheese milk, skimmed milk
  • Cream (Cow and Goat)
  • Whey (Cow and Goat) – 1st, 2nd and centrifuged
  • Cheese
  • Retentate
  • Customer-specific dairy products

Available parameters

  • Fat
  • Protein
  • Lactose
  • Freezing point
  • Somatic cell count
  • Urea
  • Fatty Acids
  • Dry matter
  • Casein

Order samples

Calibration series and control samples can be ordered by customers through the online CPS customer portal. If you are not an existing customer, you can place your order via the order form, see ‘Downloads’ at the bottom of the page.

Application form calibration & proficiency testing

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