Sulfur Dioxide Calibration Gas

Yes. All SO₂ calibration gas mixtures produced by SpecGas Inc. are NIST traceable, meaning they are prepared against nationally recognized reference standards. This traceability ensures your instrumentation calibrations meet regulatory and quality requirements for environmental, industrial, and laboratory applications.

SO₂ calibration gas is available in disposable aluminum cylinders (58 liters), disposable steel cylinders (17–103 liters), and refillable aluminum or steel cylinders ranging from 17 liters up to 250 cubic feet. Contact SpecGas to select the best cylinder configuration for your application.

The balance gas is fully customizable based on your analytical requirements. Nitrogen is the most common balance gas used with SO₂ mixtures, but other inert gases are available. SpecGas will work with you to determine the most appropriate balance gas for your specific instrument or monitoring application.

SpecGas uses a proprietary internal cylinder treatment process specifically developed for reactive and toxic gas mixtures like SO₂. This treatment extends shelf life and maintains concentration accuracy at low PPM and PPB levels. All mixtures come with the SpecGas Stability Guarantee, and disputed results are re-analyzed and remade at no charge.

SO₂ calibration gas is used for calibrating gas detectors and analyzers, air quality and emissions monitoring equipment, gas chromatography instruments, and industrial process controls. It is also widely used in university and commercial research laboratories, as well as field applications where portable detection equipment requires on-site calibration.

Yes. SpecGas Inc. ships SO₂ calibration gas both domestically within the USA and internationally via overseas shipping. Custom shipping arrangements are available. Contact SpecGas directly to discuss delivery timelines, international shipping requirements, hazardous materials compliance, and any specific logistical needs for your location.