Products & Services

Calibration gas standards for Carbon Dioxide Quality Check (CDQC) Analyzsrs & GCs


Carbon Dioxide is usually used in food & beverages industry to preserve the quality of food products and carbonization of beverages.

Because of high demand of improved quality and purity of Carbon Dioxide (CO2), manufacturer must compulsorily install the impurity check analyzers or quality check analyzers. It is very challenging for analyzer service providers to calibrate these analyzers for given impurity components.

Here, we at CSL are constantly developing certified calibration gas standards prepared gravimetrically (ISO 6142) and analyzed on very accurate Gas Chromatography.

Our Calibration gas Standards are widely used by CO2 manufacturer, system integrators & calibration service providers.

We offer all Types of calibration gases for CDQC analyzer systems.




Calibration Gas Mix / Standards for Total Sulfur Analyzer

Components Concentration (v/v) or (mol/mol)
Cal Gas 1 Cal gas 2 Cal Gas 3 Cal Gas 4 Cal Gas 5 Cal gas 6
Hydrogen Sulfide 100 to 200 PPB 100 to 200 PPB 1 ppm 1 to 20 ppm - -
Methyl Mercaptan - - 1 ppm - 1 to 20 ppm -
Methyl Ethyl Sulfide - - 1 ppm - - -
Carbonyl Sulfide - - 1 ppm - - 1 to 20 ppm
Carbon Disulfide - - - - - -
Sulfur Dioxide - - - - - -
Dimethyl Sulfide - - - - - -
Nitrogen BALANCE % - Balance % Balance % Balance % Balance %
Carbon Dioxide - BALANCE % - - - -


Calibration Gas Standards for Total Hydrocarbon in CO2

Components Concentration (v/v) or (mol/mol)
Cal Gas 1 Cal gas 2 Cal Gas 3
Methane 10 to 20 ppm 20 to 80 ppm 20 to 40 ppm
Ethane 10 to 20 ppm - -
Ethylene 10 to 20 ppm - -
Propane 10 to 20 ppm - 20 to 40 ppm
Propylene 10 to 20 ppm - -
N-Butane 10 to 20 ppm - -
Iso-Butane 10 to 20 ppm - -
N-Pentane 10 to 20 ppm - -
Iso-Pentane 10 to 20 ppm - -
1-butene 10 to 20 ppm - -
1-Pentene 10 to 20 ppm - -
Nitrogen Balance % - Balance %
Carbon Dioxide - Balance % -


Calibration Gas Standards for Trace Aromatics & Oxygenates

Components Concentration (v/v) or (mol/mol)
Cal Gas 1 Cal gas 2 Cal Gas 3
Acetaldehyde 0.1 ppm 1 to 2 ppm 1 to 2 ppm
Methanol 20 ppm 5 to 10 ppm -
Ethanol 10 ppm - -
benzene 1 ppm 80 to 100 PPB 80 to 100 PPB
Ethane 1 ppm - -
Ethylene 1 ppm - -
N-Butane 1 ppm - -
Propane 1 ppm - -
Propylene 1 ppm - -
P-xylene 1 ppm - -
Toluene 1 ppm - -
Methane 5 ppm - -
Nitrogen Balance % Balance % Balance %

(For Other Combinations, please contact us)


Calibration Gas Standards for Trace Oxygen
  • We can supply as low as 2 ppm O2 in CO2 or N2
  • Standard Calibration Gas for CDQC is 20 to 40 ppm Oxygen in Carbon Dioxide
  • The CO2 used will be free of HCs and Sulfides

Gas Standard for Zero Calibration of Total HCs/ Sulfides
  • Mainly High Pure Carbon dioxide is used for Zero Calibration
  • We supply High Purity Carbon Dioxide with traces of known impurities
  • Purity of Carbon dioxide (CO2) is 99.999%

High Pure Hydrogen (with <1 ppm THC) as Fuel Gas