Precision Gas Cylinders — Accurate Mixtures for Dependable Measurement
Precision gas cylinders contain mixtures prepared to tight tolerances so that analysers and sensors can be calibrated against a known value. REAL GAZ blends by mass on calibrated balances, then verifies each mixture analytically before release.
Component concentrations can range from low ppb levels to percent levels in a balance of nitrogen, air or another matrix gas.
Component concentrations can range from low ppb levels to percent levels in a balance of nitrogen, air or another matrix gas.
Preparation uses ISO 6142-1 gravimetry, verification follows ISO 6143 comparison methods and the laboratory works toward ISO 17025, for metrology and compliance users.
🏭 Where Precision Cylinders Are Used
- ⚙️ Stack emission monitoring — CO, NOx, SO₂ and CO₂ mixtures calibrate continuous emission analysers;
- 🔬 Gas detector bump and span tests — safety teams verify fixed and portable detectors with certified concentrations;
- 🏥 Automotive exhaust testing — propane, CO and CO₂ blends set up garage and laboratory analysers;
- 🚀 Process control — inline analysers in refineries and chemical plants are checked against reference mixtures.
💡 Why Choose REAL GAZ
- ✅ Gravimetric traceability — mass-based preparation links each concentration to balance calibration;
- 🧪 Stated uncertainty — every certificate lists the expanded uncertainty and its coverage factor;
- 🎯 Stable mixtures — cylinder and valve combinations are chosen to prevent adsorption losses;
- 🔒 Custom blends — unusual components or concentration pairs can be prepared on request;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- mass-based filling on calibrated balances;
- analysis against certified reference gases;
- homogenisation by rolling;
- stability review and leak testing.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
🎯 Using Precision Mixtures
Roll or lay cylinders on their side for a short time before first use if they have been stored cold, since this restores homogeneity. Use stainless steel regulators, short lines and a gentle purge before taking readings. Stop using a mixture when the pressure drops below the level given on the certificate, and respect the stated expiry date, because stability data apply only within that period. Typical applications include 2 ppm, 50 ppm and 500 ppm CO in nitrogen for detectors, 10 per cent CO₂ in air for incubators and multi-component refinery gas standards. For regulatory monitoring, EN 14181 style quality assurance calls for calibration gases with known uncertainty, and precision cylinders supply that reference. Ask about zero gas, span gas and multi-point kits to simplify routine calibration schedules.
⚙️ Trusted Gas Solutions
REAL GAZ offers precision gas cylinders with full documentation to environmental, industrial and safety customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
REAL GAZ — trusted numbers, certified concentrations.