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Testing laboratory No. 1319 is accredited by ČIA according to ČSN EN ISO/IEC 17025:2018. As part of its accreditation, it performs chemical analyses of the composition of milk and dairy products, including the determination of the freezing point of milk. It also provides microbiological testing of milk, dairy products, food, food supplements, and feed within the scope defined in the Annex to the accreditation certificate.

Analytical chemistry:

Analysis	Method	Subject of the examination
Determination of total dry matter content – gravimetrically and fat-free dry matter (TPS) by calculation from measured values	ČSN ISO 6731; ČSN 57 0530, Art. 40	Milk, cream, and condensed unsweetened milk
Determination of water content – gravimetric (moisture)	ČSN 57 0105-13	Dried milk
Determination of total dry matter content – gravimetric (in sand)	ČSN EN ISO 5534	Cheese and processed cheese
Determination of fat content – butyrometrically	SOP 5 (ČSN ISO 19662; ČSN 57 0530, Art. 86 and 111; ČSN ISO 3433)	Milk and dairy products
Determination of total protein content – Kjeldahl method	SOP 1 (ČSN 57 0530, Art. 46 and 47; ČSN EN ISO 8968-1; ČSN ISO 1871)	Milk and dairy products
Determination of lactose content – commercial MEGAZYME kit	SOP 2 (ČSN ISO 5765-2; IDF 79-2; manual MEGAZYME)	Milk, condensed milk, dried milk
Determination of freezing point – cryoscopically	ČSN EN ISO 5764	Liquid milk
Determination of casein content – Kjeldahl method	SOP 3 (ČSN ISO 17997-1)	Milk, liquid milk products, and dried milk
Determination of fat content – gravimetrically	SOP 4 (ČSN EN ISO 1211; ČSN EN ISO 7208; ČSN EN ISO 2450;ČSN EN ISO 1736; ČSN EN ISO 23319)	Milk and dairy products

Microbiology:

Analysis	Method	Subject of the examination
Determination of the total number of microorganisms cultivationally	ČSN EN ISO 4833-1	Products for human consumption and animal feed
Determination of the number of β-glucuronidase-positive Escherichia coli	ČSN ISO 16649-2	Products for human consumption and animal feed, bacterial suspensions, dairy cultures
Determination of the number of coliform bacteria cultivationally	ČSN ISO 4832	Products for human consumption and animal feed, bacterial suspensions, dairy cultures
Determination of the number of yeasts and molds cultivationally	ČSN ISO 6611	Milk and dairy products
Determination of the number of psychrotrophic microorganisms cultivationally (rapid method)	ČSN ISO 17410, Appendix B	Milk
Determination of the number of characteristic yogurt bacteria cultivationally	ČSN ISO 7889	Yogurt and fermented products
Determination of the number of bacteria of the Enterobacteriaceae family cultivationally	ČSN EN ISO 21528-2	Products for human consumption and animal feed
Determination of the number of presumptive bifidobacteria cultivationally	ČSN ISO 29981	Dairy products, milk-based infant and baby food, starter cultures, dietary supplements, probiotic products for human and animal nutrition
Determination of the number of presumptive L. acidophilus cultivationally	ČSN ISO 20128	Dairy products, powdered milk, infant nutrition, dietary supplements