Standard Practice for Development and Validation of Multivariate Analyses for Use in Predicting Properties of Petroleum Products, Liquid Fuels, and Lubricants based on Spectroscopic Measurements.
Get more information about the standard at ASTM D8321-22.
ASTM D8321 is a standard practice that provides guidelines for the development and validation of multivariate analyses using infrared (IR) spectrophotometers and Raman spectrometers. This practice is specifically designed to predict the physical, chemical, and performance properties of petroleum products, liquid fuels—including biofuels—and lubricants. By employing multivariate calibration techniques, this standard enhances the accuracy and reliability of spectroscopic measurements in these industries.
Details
The ASTM D8321 standard encompasses several key aspects:
- Data Collection: Acquiring spectral data from samples using IR or Raman spectroscopic techniques.
- Calibration Development: Utilizing statistical methods to correlate spectral data with known property values obtained from primary test methods (PTMs).
- Validation: Assessing the model’s performance by comparing predicted results with actual measurements to ensure the model’s reliability.
- Implementation: Applying the validated model to predict properties of unknown samples in various settings, including laboratory, at-line, and online analyses.
ASTM D8321 provides a comprehensive framework for the development and validation of multivariate spectroscopic analyses.