In your laboratory, TITRIVIN reference materials are essential...

To calibrate equipement :
For a parameter, TITRIVIN supplies a reference value (Vref) with its uncertainty (u). This means the true value is between [Vref - u ; Vref + u] called the confidence interval. This is the interval in which your laboratory can give a value when it use TITRIVIN as a standard. The calibration must be assessed with this value. Most of the time, you will use the reference value to calibrate.But to improve your calibration curve, you could use a value within to the confidence interval.

To carry out internal quality control :
Your laboratory monitors the quality of their results using a control chart.
This control is easily carried out with TITRIVIN wine standards.

See : "What is a control chart ?"
"How to create a control chart with TITRIVIN reference materials ?"
"How to analyse my control chart ?"

To assess uncertainties :
This is a direct use of the quality control with TITRIVIN. When your control chart is in place, you can assess your uncertainty from this range of analytical results.