Buy Calibration Gas Mixtures — certified standards ordered directly from the blender
When you buy calibration gas mixtures from REAL GAZ, you order straight from the team that blends and analyses them. Each mixture is made to a stated concentration and tolerance so that your detectors and analysers read correctly from the first test.
Popular requests include methane in air, carbon monoxide in nitrogen, hydrogen sulphide in nitrogen and propane in air.
Popular requests include methane in air, carbon monoxide in nitrogen, hydrogen sulphide in nitrogen and propane in air.
Ordering is simple: tell us the components, the nominal concentrations, the balance gas and the tolerance you can accept, and we propose a cylinder size and valve outlet. Small portable cylinders suit site engineers who bump-test handheld detectors, while larger sizes serve fixed analysers on plants. Reactive gases such as hydrogen sulphide and nitrogen dioxide are filled into passivated cylinders to protect concentration stability. A few practical points help when you place an order. Check the expiry date against your calibration interval, because reactive mixtures such as hydrogen sulphide have a shorter shelf life than methane in air. Keep cylinders upright and secured, away from heat sources, and use a regulator rated for the gas and pressure. Record the cylinder number on each calibration report. If your detector manual specifies a flow rate, tell us and we will recommend a matching fixed-flow regulator.
REAL GAZ supplies this product according to ISO 6142, ISO 6143 and ISO 17025 practice, suitable for safety and environmental monitoring programmes.
🏭 Where Calibration Gas Mixtures Are Used
- 🛢️ Oil and gas safety — span gas for fixed and portable detectors on platforms, pipelines and refineries;
- 🏭 Stack emission monitoring — reference mixtures for continuous emission analysers that report NOx, SO₂ and CO;
- ⛏️ Mining and tunnelling — methane and carbon monoxide standards for underground gas monitors;
- 🚒 Fire and rescue teams — routine calibration of multi-gas personal monitors before every shift.
💡 Why Choose REAL GAZ
- ✅ Direct from the blender — no intermediary means shorter lead times for specification questions and clearer traceability;
- 🧪 Stated tolerance — the certified value and uncertainty are printed so auditors can verify the calibration chain;
- 🎯 Stable concentrations — passivated cylinders and suitable valves keep reactive components within their shelf life;
- 🔒 Repeat ordering — your recipe is stored so a reorder reproduces the same mixture and documentation;
- 📄 Certificate of Analysis (CoA) — included with each cylinder, listing components, concentrations and expiry.
🔬 Quality Control & Safety
- gravimetric blending on calibrated balances;
- analysis against reference standards;
- stability checks for reactive components;
- leak testing and valve integrity inspection.
Cylinders comply with ADR / UN transport rules and relevant ISO 9809 and EN standards.
⚙️ Trusted Gas Solutions
REAL GAZ is a practical partner if you need to buy calibration gas mixtures for fleets of detectors, laboratory instruments or plant analysers. We serve customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, and can advise on concentration levels that fit your alarm set points.
REAL GAZ — order the standard, trust the reading.