Precision Ar-N₂ Gas Blend

Precision Ar-N₂ Gas Blend — accurate mixing for analysers and critical processes

The Precision Ar-N₂ Gas Blend from REAL GAZ is an argon–nitrogen mixture prepared to tight composition tolerances, so that instruments and processes receive exactly the gas they were designed for. Both components are inert at ordinary temperatures, which makes the mixture stable in storage.
Typical nitrogen fractions run from a few hundred ppm up to several percent, certified to the stated uncertainty.

Preparation follows ISO 6142, with composition checks supported by ISO 6143 calibration methods and ISO 17025 quality practice for laboratory and industrial users.

🏭 Where Precision Argon–Nitrogen Blends Are Used

🔬 Analyser calibration — gas chromatographs and optical emission spectrometers are checked against known argon–nitrogen references;
🏭 Nitrogen determination in metals — spark OES uses argon atmospheres to measure nitrogen in steel;
💡 Lamp filling — argon with a defined nitrogen share limits arcing in filament lamps;
🚀 Thin-film deposition — reactive sputtering uses controlled nitrogen in argon to form nitride coatings.

💡 Why Choose REAL GAZ

✅ Certified accuracy — each lot carries a stated concentration and uncertainty;
🧪 Stable composition — inert components resist reaction inside treated cylinders;
🎯 Custom fractions — non-catalogue nitrogen levels can be prepared on request;
🔒 Traceable weights — gravimetric records link each cylinder to its preparation;
📄 Certificate of Analysis (CoA) — supplied with every order.

🔬 Quality Control & Safety

multi-step cylinder cleaning and evacuation;
precision gravimetric blending;
analytical verification against reference standards;
pressure integrity and valve leak checks.

Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.

📦 Grades, Cylinders & Handling

📌 Cylinders — aluminium and steel cylinders of 10 to 50 litres are used depending on the nitrogen level;
📌 Shelf life — stability periods are shown on the certificate;
📌 Regulators — use clean, single-stage or two-stage regulators with stainless diaphragms for low-ppm grades;
📌 Purging — purge lines before analysis to remove air and moisture.

🧭 Understanding Accuracy and Uncertainty

A precision blend is defined by two numbers: the nominal concentration and its expanded uncertainty. A 1% nitrogen mixture certified at plus or minus 1% relative is a very different product from one certified at plus or minus 5%, and the preparation effort differs accordingly. Choose the tolerance that your method truly needs. Instrument calibration normally requires the tighter figure, whereas a process atmosphere seldom does. The certificate lists the components, the method of preparation, the analytical check and the date, so auditors can trace the value to its weighings. Where an instrument spans several ranges, we can supply a set of cylinders at different concentrations.

⚙️ Trusted Gas Solutions

REAL GAZ provides the Precision Ar-N₂ Gas Blend to laboratories, foundries and coating plants in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Each delivery is supported by the record of how the blend was made and verified.

REAL GAZ — measured to the decimal, delivered with proof.