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Sulfur dioxide (SO2), R 764

For our measurement sensor for determining the concentration of Sulfur dioxide, we offer the following calibration gases.

Zero gas This gas is needed for the calibration of the zero point.
Standard test gas The standard test gas is required for calibration / adjustment of the sensor with a two-point calibration. The concentration value corresponds to 70% to 100% of the full scale value of the probe.
Alarm test gas The alarm test gas is required to verify the alarm levels.


Select the measuring range of your probe:


0 - 100 ppm

Measuring range
of the probe
GasUsageBottle filling volume (Liter)
34 l58 l110 l
0 - 100 ppm Synthetic air Zero gas Z0A0-L1373 Z0A0-M1373 Z0A0-N1373
100 ppm SO2 in Nitrogen Standard test gas Z0A0-O1413 Z0A0-P1413 Z0A0-Q1413
20 ppm SO2 in air Alarm test gas Z0A0-O1404 Z0A0-P1404 Z0A0-Q1404
5 ppm SO2 in air Alarm test gas Z0A0-O1400 Z0A0-P1400 Z0A0-Q1400