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