High Accuracy Hydrocarbon Blend — tight tolerances, small uncertainty
A high accuracy hydrocarbon blend from REAL GAZ is made with narrow blending tolerance and a documented uncertainty budget, so it can anchor a calibration hierarchy.
Component purity is analysed first and its effect on the final concentration is corrected in the certificate.
Component purity is analysed first and its effect on the final concentration is corrected in the certificate.
Production follows ISO 6142-1, ISO 6143 and ISO 17025 practice, suitable for metrology and reference use.
🏭 Where High Accuracy Hydrocarbon Blends Are Used
- ⚙️ Calibration laboratories — reference blends are used to calibrate secondary standards and working gases;
- 🔬 Emission monitoring — accurate propane and methane standards support legal emission measurements;
- 🏥 Instrument qualification — performance verification of analysers demands a small reference uncertainty;
- 🚀 Inter-laboratory studies — proficiency testing schemes depend on well-characterised blends.
💡 Why Choose REAL GAZ
- ✅ Narrow tolerance — the delivered concentration lies close to the nominal target;
- 🧪 Purity correction — impurities in each parent gas are analysed and accounted for;
- 🎯 Uncertainty budget — expanded uncertainty is reported with a coverage factor;
- 🔒 Stability data — long-term stability of the blend is checked and stated;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- parent gas purity analysis;
- calibrated balances and mass-comparison weighing;
- comparison against independent reference mixtures;
- leak testing and pressure integrity checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards, with specially treated cylinders for low-ppm stability.
⚙️ Trusted Gas Solutions
REAL GAZ offers each high accuracy hydrocarbon blend to metrology institutes, accredited laboratories and instrument manufacturers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
Tell us the target uncertainty and we will advise whether a single-step or a two-step dilution route best achieves it. For the lowest uncertainties, gravimetric preparation is combined with comparison against independent reference mixtures, and cylinders are conditioned before filling. Please use the stated pressure range only, since composition at very low pressure may drift beyond the certified limits.
Applications that demand this level of care include verification of emission analysers under regulation, calibration of reference chromatographs, preparation of working standards by dilution, and research into measurement comparability. A typical relative expanded uncertainty is a few percent for ppm-level components and a fraction of one percent for percent-level components, depending on the species and the chosen route. The certificate lists the value, the uncertainty and the traceability chain so that auditors can follow every step. Customers who need accreditation evidence can ask for additional documentation, including the preparation record, the purity data of each parent gas and the comparison results, which together support their own uncertainty calculations and audits. Questions about conditioning, transfer lines and sampling technique are welcome, since these often decide whether the certified value is actually reproduced at the instrument.
REAL GAZ — accuracy you can document.