He-N₂ Gas Mixture for laboratory analysis — reference blends for analytical work
A He-N₂ Gas Mixture for laboratory analysis from REAL GAZ is prepared as a measurement standard, with a composition that can be quoted in your own reports.
Helium and nitrogen differ greatly in thermal conductivity and molar mass, which is why this pair is useful as a test matrix.
Helium and nitrogen differ greatly in thermal conductivity and molar mass, which is why this pair is useful as a test matrix.
REAL GAZ supplies this product according to ISO 6142-1, ISO 6143 and ISO 17025 calibration and quality principles, suitable for analytical chemistry.
🏭 Where He-N₂ Analytical Mixtures Are Used
- ⚙️ TCD calibration — verifying detector response across the helium-nitrogen range;
- 🔬 Gas chromatography checks — system suitability and retention tests with a known matrix;
- 🏥 Leak-detector verification — confirming that a helium mass spectrometer reads correctly against a reference;
- 🚀 Sensor characterisation — studying the response of thermal and acoustic sensors to composition changes.
💡 Why Choose REAL GAZ
- ✅ Certified composition — concentration stated with its uncertainty on the certificate;
- 🧪 Gravimetric preparation — components weighed rather than estimated by pressure;
- 🎯 Range choice — low, mid or high helium levels to bracket your measurements;
- 🔒 Traceable records — cylinder and batch data retained for audit questions;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📦 Specifications and Supply
- Helium from trace levels up to major component;
- Balance nitrogen at analytical purity;
- Uncertainty options chosen at order stage;
- Certificate issued per cylinder.
For defensible results, allow the cylinder to reach laboratory temperature, purge the regulator and line before connecting to the instrument, and record the cylinder number alongside each calibration run.
In a thermal conductivity detector, the large difference between helium and nitrogen gives a strong, easily measured signal, so mixtures covering the helium range are a convenient way to check linearity. In leak-detector verification, a certified mixture lets the technician confirm the instrument response before relying on it for acceptance decisions. Because analytical use often involves comparing two cylinders, we keep batch records and can supply a second cylinder of the same recipe on request. If you need the uncertainty to be reported in a particular way, such as at a specific confidence level, mention this when ordering. Remember to flush the regulator several times before opening the line to the instrument, because trapped air in the dead volume is a common source of drift in the first few minutes of use.
🔬 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 provides He-N₂ Gas Mixture for laboratory analysis to laboratories in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA that depend on trustworthy reference gases.
REAL GAZ — measured with care, certified for confidence.