Precision Helium Nitrogen Mixture — tight tolerances for demanding measurements
A Precision Helium Nitrogen Mixture from REAL GAZ is made when relative accuracy matters more than price, with composition held to a narrow tolerance band.
Narrow tolerances demand careful weighing, clean cylinders and verification against reference standards.
Narrow tolerances demand careful weighing, clean cylinders and verification against reference standards.
REAL GAZ supplies this product according to ISO 6142-1, ISO 6143 and ISO 17025 measurement requirements, suitable for metrology and quality-critical work.
🏭 Where Precision Helium-Nitrogen Mixtures Are Used
- ⚙️ Reference standards — used to verify other working gases in a calibration chain;
- 🔬 Instrument qualification — installation and operational checks of analysers;
- 🏥 Round-robin trials — laboratories compare results using identical blends;
- 🚀 Product development — engineering teams characterise sensors against an accurate composition.
💡 Why Choose REAL GAZ
- ✅ Narrow tolerance — relative tolerance tighter than standard blends;
- 🧪 Low uncertainty — uncertainty budget reported with the composition;
- 🎯 Conditioned cylinders — internal surface treated to limit drift;
- 🔒 Stability data — guidance on shelf life and recommended use period;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📦 Specifications and Supply
- Tolerance and uncertainty classes selected at order;
- Aluminium or specially treated cylinders;
- Individually analysed and certified;
- Recommended re-analysis period stated.
To preserve accuracy, avoid decanting from the cylinder, keep it at stable temperature and use a clean, purged regulator. Do not use the final low-pressure portion of the cylinder for critical calibration.
Where the result must be defended, the preparation record matters as much as the number on the label. We therefore keep the weighing data, the analysis results and the cylinder history for each precision batch, so that questions can be answered long after delivery. When ordering, state the tolerance you need and the uncertainty you can accept, and tell us how the gas will be used. A cylinder that will be consumed over several months may be treated differently from one used in a single afternoon. We would rather discuss this at the start than discover a mismatch after the gas has been delivered. We also suggest ordering a second cylinder of the same batch when long projects are planned, so that a comparison check or replacement is available without introducing a different preparation into your data series. Where your quality system requires it, we can also state the date of analysis and the instrument used, so that the certificate fits neatly into your own calibration records.
🔬 Quality Control & Safety
- multi-stage purification;
- precision gravimetric blending;
- moisture & impurity analysis;
- leak testing and pressure integrity checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ prepares each Precision Helium Nitrogen Mixture for customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA who need accuracy they can document.
REAL GAZ — accuracy that stands up to scrutiny.