Precision Carbon Dioxide Gas — accurate concentrations for calibration and control
Precision Carbon Dioxide Gas is supplied by REAL GAZ as certified mixtures of CO₂ in nitrogen, air or other balance gases, at concentrations from a few ppm up to percent levels.
Each blend is prepared gravimetrically and verified against reference materials.
Each blend is prepared gravimetrically and verified against reference materials.
Preparation follows ISO 6142-1, verification follows ISO 6143, and the shelf life of the mixture is stated on the certificate under ISO 17025 practice.
Accuracy in gas standards depends on preparation, cylinder surface and storage. Gravimetric preparation removes dependence on pressure readings, and passivated aluminium or treated steel cylinders limit loss of CO₂ to the wall. Together they allow REAL GAZ to state composition with an uncertainty that suits regulatory monitoring, process control and research measurements alike. Where an unusual matrix is needed, such as CO₂ in synthetic air or in nitrogen with humidity limits, we will confirm feasibility before blending begins.
🏭 Where Precision Carbon Dioxide Is Used
- ⚙️ Gas analyser calibration — NDIR sensors in industry and research are spanned with known CO₂ concentrations;
- 🔬 Indoor air quality — building management systems are checked against reference values to control ventilation;
- 🏥 Capnography testing — service laboratories test the accuracy of CO₂ monitoring equipment;
- 🚀 Combustion monitoring — stack gas analysers are verified against CO₂ standards for compliance reports.
💡 Why Choose REAL GAZ
- ✅ Stated uncertainty — expanded uncertainty is shown on the certificate;
- 🧪 Stable cylinders — passivated surfaces keep low-level mixtures from drifting;
- 🎯 Custom blends — you can request specific concentrations and balance gases;
- 🔒 Traceability — values link back to primary reference standards;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- gravimetric preparation on calibrated balances;
- analytical verification against reference gases;
- cylinder passivation and conditioning;
- stability monitoring and leak checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
📦 Using Calibration Mixtures
- Allow the cylinder to reach room temperature before use, and discard the first purge volume from the line;
- Keep flow rates within the analyser specification and use the mixture before the stated expiry date on the certificate;
- Do not use the final 10 bar, as composition near empty can shift in low-concentration blends;
- Record cylinder number, certificate value and date at each calibration for your own audit trail.
⚙️ Trusted Gas Solutions
REAL GAZ supplies this range: Technicians who rely on Precision Carbon Dioxide Gas depend on numbers that stay true. REAL GAZ offers blending, certification and delivery to customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, and advises on regulator materials that avoid adsorption of CO₂ at trace levels.
REAL GAZ — measured, certified, trusted.