[Method of linear calibration function control according to GOST R ISO 11095-2007 for measuring the mass...

Area of Science:

• Analytical Chemistry
• Metrology

Context:

• Calibration functions require regular validation to ensure accuracy.
• GOST R ISO 11095-2007 provides a framework for method validation.
• Reference Materials (RMs) are crucial for quality control in analytical measurements.

Purpose:

• To implement a control method for validating existing calibration functions.
• To assess the stability and reliability of calibration functions using both standard and internal RMs.
• To ensure compliance with GOST R ISO 11095-2007 standards.

Summary:

• A control method was applied to validate calibration functions for aqueous ethanol solutions.
• Standard RMs and internally developed RMs were used for validation.
• Control charts demonstrated that the system was in a controlled state, requiring no updates to the calibration function.
• Uncertainty assessment was performed during the validation process.

Impact:

• Confirms the long-term stability of calibration functions.
• Ensures the reliability of analytical measurements for ethanol concentration.
• Provides a robust framework for ongoing quality assurance in chemical analysis.