Multi-component Hydrocarbon Gas Mixture — many species, one certified cylinder
A multi-component hydrocarbon gas mixture from REAL GAZ combines many species, such as methane, ethane, propane, iso- and n-butane, pentanes, hexanes, nitrogen and carbon dioxide, within a single traceable standard.
Such blends are demanding to make because heavier components can condense, so composition and pressure are designed together.
Such blends are demanding to make because heavier components can condense, so composition and pressure are designed together.
Mixtures are prepared according to ISO 6142, ISO 6143 and ISO 6974 principles, suitable for extended natural gas and refinery analysis.
🏭 Where Multi-component Hydrocarbon Mixtures Are Used
- ⚙️ Extended natural gas — standards for C6+ analysis support custody transfer and quality reporting;
- 🔬 Refinery fuel gas — multi-species mixes calibrate on-line chromatographs that monitor fuel gas heating value;
- 🏥 Biogas — blends with CO2, N2 and trace hydrocarbons reproduce upgraded biomethane;
- 🚀 LNG and boil-off — references with high ethane and propane levels check vaporised LNG samples.
💡 Why Choose REAL GAZ
- ✅ One cylinder, many peaks — a single standard replaces several single-component bottles;
- 🧪 Dew point design — filling pressure is limited so heavier components stay in the gas phase;
- 🎯 Documented accuracy — each component carries its own certified value and uncertainty;
- 🔒 Treated cylinders — passivated surfaces keep heavy species from sticking to walls;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- component by component weighing during preparation;
- homogenisation by rolling and heating;
- analytical verification of each species;
- leak testing and pressure integrity checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards; heated storage advice is included for dew-point sensitive blends.
⚙️ Trusted Gas Solutions
REAL GAZ prepares each multi-component hydrocarbon gas mixture for laboratories and operators in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
We advise on regulator heating and sample lines, because a perfect cylinder can still be spoiled by condensation in cold tubing. Heated regulators and lines kept above the hydrocarbon dew point prevent the heavier fractions from dropping out, and a stable result from the first injection to the last depends on it. Ask us for a component list review before ordering.
A typical natural gas standard from our range contains methane as the balance with nitrogen, carbon dioxide, ethane, propane, isobutane, n-butane, neopentane, isopentane, n-pentane and n-hexane at defined levels. Refinery and petrochemical versions add ethylene, propylene, butenes, hydrogen or carbon monoxide. Because the number of components affects both cost and uncertainty, we help you to include only what your method actually needs, and still leave margin for future analyser upgrades. After delivery, allow the cylinder to reach room temperature for at least a day, roll it gently before first use, and keep it indoors. These simple steps restore homogeneity if the cylinder has been exposed to cold during transport.
REAL GAZ — complex mixtures, simple confidence.