Product Description
Trace-Level 5 PPM Sulfur Dioxide Calibration Gas – Nitrogen Balance 66L Cylinder
This certified 5 ppm sulfur dioxide (SO₂) calibration gas mixture in nitrogen balance is supplied in a 66L (2.3 cubic foot) refillable aluminum C-10 cylinder at 1150 PSI.
Designed for low-concentration measurement verification, this mixture supports calibration of sensitive electrochemical sensors used in exposure monitoring and environmental sampling.
Nitrogen balance conditions provide a controlled background for accurate detector response near occupational exposure limits.
Typical Applications
-
Industrial hygiene exposure monitoring
-
OSHA / ACGIH compliance verification
-
Environmental air sampling programs
-
Laboratory analytical testing
-
Background concentration validation
-
Sensor sensitivity confirmation
Importance of Trace-Level Calibration
At low concentrations, reactive gases such as sulfur dioxide can produce measurement drift or delayed sensor response.
Using a certified low-ppm calibration standard helps confirm detector accuracy and prevents false safe readings.
Custom Calibration Mixtures Available
Made-to-order gas standard.
Alternate ppm levels and multi-component mixtures available for cross-sensitivity and application-specific monitoring requirements.
