Milk IR calibration sets – high

Infrared calibration sets for milk analysis are essential tools for laboratories and dairy processors aiming to ensure accurate and standardized measurement of key milk components. In particular, fat, protein, and lactose concentrations are critical parameters for routine milk quality control and dairy product formulation.

To meet the specific needs of laboratories working with milk samples with high fat content, Bentley Instruments offers a dedicated range of high-concentration infrared calibration sets. These Standard Reference Materials (SRMs) are designed for use with mid-infrared milk analyzers such as the DairySpec FT and FTS, enabling precise calibration and optimal performance in the measurement of major milk constituents (fat, protein, lactose).

Each calibration set is specifically formulated to cover elevated concentration ranges, making it particularly suitable for monitoring the performance of infrared milk analyzers used with Jersey cow milk — known for its naturally high levels of fat and protein. By using Bentley’s high-concentration calibration standards, laboratories can ensure accurate, repeatable, and consistent measurements on highly concentrate milk.

Bentley Instruments’ major components calibration sets – high concentration – are composed of 13 raw cow milk samples (60 mL each) covering a typical concentration range of:

• Fat : 6 to 9 g/100g
• Protein : 4.3 to 6.25 g/100g
• Lactose : 4.45 to 5.8 g/100g
• Dry matter : 15.5 to 21.3 g/100g

These mid-infrared calibration standards are store at cold positive and contain a stabilizer to preserve sample integrity over time.

Specifically validated for major components analysis in milk, these calibration sets provide optimal control of mid-infrared analyzers such as the DairySpec FT and FTS. They ensure long-term stability, enhanced analytical accuracy, and early detection of instrument drift.

The reference values for each calibration sample are established using the following reference methods:

• Acid-butyrometric method for fat content (NF V 04-155)
• Amido black method for true protein content (NF V 04-216)
• Kjeldahl method for non-protein nitrogen (NPN) (ISO 8968-4 | IDF 20-4)
• Enzymatic method for lactose (ISO 26462 | IDF 214)

Our major components calibration sets – high concentration – are shipped monthly according to a predefined schedule. Each shipment is prepared in isothermal packaging with ice packs to maintain the cold chain and ensure optimal sample preservation. A sealed water bottle is included to monitor temperature stability upon delivery. All shipments are sent via express carrier for rapid and secure transport.