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Proficiency Testing

Monitor the performance of your laboratory analysis by means of a proficiency test and compare with other parties anonymously. Qlip is the expert for organising chemical and microbiological proficiency tests for milk and dairy products.

By participating in a proficiency test, the performance of your laboratory analysis is compared with that of other parties. Under ISO17025 accreditation laboratories are required to join proficiency tests.

  • Milk
  • Concentrated milk
  • Milk powder
  • Cream
  • Whey
  • Cheese
  • Butter
  • Butterfat
  • Infant formula
  • Water

Qlip organises proficiency tests for chemical and microbiological determinations. We can organise customer-specific proficiency tests, for example for all locations within one dairy organisation that are using FTIR instruments to test products. The proficiency test usually takes place two to three times a year. The available parameters are listed below.

FTIR and chemical proficiency tests

  • Fat, protein, lactose
  • Dry matter
  • Saccharose
  • Freezing point
  • Somatic cell count
  • Moisture
  • Salt
  • pH
  • Fatty acids
  • Peroxide
  • Nitrate/Nitrite

Microbiology proficiency tests

  • Bacterial count
  • Inhibitors / Antibiotics
  • Thermoduric streptococci
  • Lactobacilli
  • Coliforms
  • Enterobacteriaceae
  • E. coli
  • Coagulase-positive staphylococci
  • Yeasts and moulds
  • Vegetative Bacillus Cereus
  • Salmonella
  • Listeria Monocytogenes

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