pH_e determination in bioethanol

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Because pH_e determination according to ASTM D 6423 and EN 15490 is time-controlled, it is essential that the sensor has a rapid response time.

The EtOH-Trode with a special membrane glass and the very precise fixed ground-joint diaphragm is particularly suitable for measuring the pH_e values of biofuels.

The double-junction system allows the free choice of the electrolyte (e.g., 3 mol/L KCl in ASTM D 6423 and 1 mol/L LiCl in EN 15490).
 

The pH meter used for the measurement should possess the following GLP functions:

• Three-point calibration with automatic buffer recognition
• Temperature compensation
• Calibration data monitoring
• Automatic measured value recording
• Result memory with identification

The pH meter 827 pH lab for laboratory use and the handy, battery-operated 826 pH mobile offer all these functions with extremely comfortable operation.