Precision CO Gas — tight tolerances for demanding calibration work
Precision CO gas from REAL GAZ refers to carbon monoxide and CO mixtures made with narrow tolerances and low uncertainty for calibration and reference measurement. Blends are prepared gravimetrically with high-resolution balances in a controlled environment.
Typical offers include CO in nitrogen at 10 ppm, 100 ppm, 1,000 ppm and 1% levels, with relative tolerances agreed at order stage.
Typical offers include CO in nitrogen at 10 ppm, 100 ppm, 1,000 ppm and 1% levels, with relative tolerances agreed at order stage.
REAL GAZ prepares precision blends under ISO 6142-1, validates them using ISO 6143 and operates quality practice aligned with ISO 17025 for metrology and laboratory users.
Gravimetric preparation means that each component is weighed into the cylinder, so the concentration follows directly from mass and molar mass, which are known with high accuracy. The result is then compared with independent reference mixtures to confirm there are no errors in the preparation. Customers who run their own accredited laboratories can use these blends as working standards, linking daily measurements to the certified values through documented comparison steps. When a new certificate arrives, compare the stated value with the previous batch to confirm continuity of the measurement series.
🏭 Where Precision CO Gas Is Used
- ⚙️ Reference standards — calibration laboratories use precision blends to establish traceable working standards for CO measurement;
- 🔬 Environmental monitoring — ambient air stations check analysers against stable low-ppm mixtures;
- 🏥 Occupational hygiene — portable monitors worn by workers are verified with accurately known concentrations;
- 🚀 Research publications — studies that report CO measurements need standards with documented uncertainty.
💡 Why Choose REAL GAZ
- ✅ Narrow tolerance — blends are made close to the target concentration, reducing correction effort;
- 🧪 Low uncertainty — certificate values include expanded uncertainty so you can propagate it in your own budget;
- 🎯 Stable cylinders — internal surface treatment preserves low-ppm concentrations over the stated shelf life;
- 🔒 Repeat batches — we can reproduce the same mixture later, helping you maintain long-term continuity;
- 📄 Certificate of Analysis (CoA) — supplied with each precision cylinder, showing concentration, uncertainty, traceability route and expiry.
🔬 Quality Control & Safety
- gravimetric preparation with documented weighings;
- comparison against reference mixtures by analyser;
- purity analysis of every parent gas;
- stability and leak checks before release.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards. Allow regulators to be purged several times to avoid dilution of low-level blends.
⚙️ Trusted Gas Solutions
REAL GAZ provides precision CO gas to calibration and quality teams in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Share your required concentration and tolerance and we will confirm what can be achieved and which cylinder size is appropriate.
REAL GAZ — precision you can document.