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Acetylene (C2H2) Calibration Gas
11998
Acetylene calibration gas is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colourless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odourless, but commercial grades usually have a marked odour due to impurities. Acetylene is not especially toxic, but when generated from calcium carbide, it can contain toxic impurities such as phosphine and arsine traces, giving it a distinct garlic-like smell. It is also highly flammable, as are most light hydrocarbons, hence its use in welding. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 0.5 % Acetylene // Air Available Available Available +/- 2% +/- 5% 60
- USD
Ammonia (NH3) Calibration Gas
12005
Ammonia calibration gas is a compound of nitrogen and hydrogen with the formula NH 3 . Ammonia is a colourless gas with a characteristic pungent smell, a stable binary hydride, and the simplest pnictogen hydride. This type of gas, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. Various forms of ammonia calibration gas are available. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 25 ppm Ammonia // Air Available Available Available +/- 5% +/- 10% 12 25 ppm Ammonia // Nitrogen Available Available Available +/- 5% +/- 10% 12 50 ppm Ammonia // Air Available Available Available +/- 5% +/- 10% 12 50 ppm Ammonia // Nitrogen Available Available Available +/- 5% +/- 10% 12 100 ppm Ammonia // Air Available Available Available +/- 5% +/- 10% 12 100 ppm Ammonia // Nitrogen Available Available Available +/- 5% +/- 10% 12 500 ppm Ammonia // Air Available Available Available +/- 2% +/- 5% 12 500 ppm Ammonia // Nitrogen Available Available Available +/- 2% +/- 5% 12 1000 ppm Ammonia // Air Available Available Available +/- 2% +/- 5% 12 1000 ppm Ammonia // Available Available Available +/- 2% +/- 5% 12 0.5 % Ammonia // Air Available Available Available +/- 2% +/- 5% 12 0.5 % Ammonia // Nitrogen Available Available Available +/- 2% +/- 5% 12 1 % Ammonia // Air Available Available Available +/- 2% +/- 5% 12 1 % Ammonia // Nitrogen Available Available Available +/- 2% +/- 5% 12 5 % Ammonia // Air Available Available Available +/- 2% +/- 5% 12
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2-Gas Mixes Calibration Gas
12027
2-gas mixes calibration gas, is as the name tells, a mixture of 2 gasses. With the SEMA Gases 2 gas mixes, multi-gas detection detectors can be bump tested or calibrated. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 1 % Propane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 8 % Butane / 13.8 % Carbon Dioxide // Nitrogen (pressure restricted 100 psig) Available Available Available +/- 2% +/- 5% 60 1 % Methane / 3 % Carbon Dioxide // Nitrogen Available Available Available +/- 2% +/- 5% 60 1.5 % Methane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 1.62 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 0.9 % Butane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 0.7 % Pentane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 0.7 % Pentane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 25 % Nitrogen / 35 % Carbon Dioxide // Methane Available Available Available +/- 2% +/- 5% 60 2.2 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 2.5 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 5 % Methane / 10 % Carbon Dioxide // Nitrogen Available Available Available +/- 2% +/- 5% 60 0.5 % Oxygen / 30 % Carbon Dioxide // Nitrogen Available Available Available +/- 2% +/- 5% 60
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4-Gas Mixes Calibration Gas
12031
4 gas mixes calibration gas can be used to calibrate multi-gas detectors. 34, 58 or 100 litres 4 gas mixtures are available in various compositions. For the full overview, see the table below. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 60 ppm Carbon Monoxide / 1.5 % Carbon Dioxide / 2.5 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2 % Carbon Dioxide / 2.2 % Methane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2 % Carbon Dioxide / 0.75 % Propane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Hydrogen / 100 ppm Methane / 5 % Carbon Dioxide / 16 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60
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3-Gas Mixes Calibration Gas
12034
3 gas mixes calibration gas is meant for the calibration of multi-gas detectors such as those of Riken Keiki. Please see the table below for the various type of 3 gas mixtures. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 2 % Carbon Dioxide / 2.5 % Methane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 50 ppm Carbon Monoxide / 4 % Methane / 5 % Carbon Dioxide // Nitrogen Available Available Available +/- 2% +/- 5% 60 5 % Carbon Dioxide / 5 % Methane / 6 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 50 ppm Carbon Monoxide / 2.2 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 50 ppm Carbon Monoxide / 2.5 % Methane / 12 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 50 ppm Carbon Monoxide / 2.5 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2.2 % Methane / 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2.5 % Methane / 19 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2.5 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 ppm Carbon Monoxide / 2.2 % Methane / 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 25 ppm Hydrogen Sulphide / 2.5 % Methane / 18.5 % Oxygen // Nitrogen Available Available Available Dif. Dif. 24 50 ppm Hydrogen Sulphide / 2.5 % Methane / 17 % Oxygen // Nitrogen Available Available Available Dif. Dif. 24 15 ppm Hydrogen Sulphide / 0.75 % Methane / 18 % Oxygen // Nitrogen Available Available Available Dif. Dif. 24
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Complex Mixture Calibration Gas
12037
Complex mixture calibration gas is a highly specialised mixture of calibration gases. The SEMA Gases complex mixture cylinders are made out of premium quality calibration gas in the Netherlands. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 10 ppm Benzene 10 ppm Ethyl-Benzene 10 ppm Toluene 10 ppm M-Xylene 10 ppm O-Xylene 10 ppm P-Xylene Balance Nitrogen Available Available Available +/- 10% +/- 20% 60 100 ppm Hydrogen 500 ppm Carbon Dioxide 500 ppm Carbon Monoxide 500 ppm Ethane 500 ppm Ethylene 500 ppm Acetylene 500 ppm Methane Balance Air Available Available Available +/- 10% +/- 20% 60 100 ppm Methane 100 ppm Ethane 100 ppm Propane 100 ppm Butane 100 ppm Pentane 100 ppm Hexane Balance Air Available Available Available +/- 2% +/- 10% 60
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5 Gas Quint Mixes Calibration Gas
12041
5 gas quint mixes calibration gas is premium, dutch made, calibration produced by SEMA Gases. As an official distributor of SEMA Gases, GMS Instruments can supply various unique and specific 5 gas quint mixes for calibration. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 15 ppm H2S / 50 ppm CO / 2 % CO2 / 2.5 % CH4 / 18 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 15 ppm H2S / 100 ppm CO / 1 % CO2 / 2.5 % CH4 / 18 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 15 ppm H2S / 100 ppm CO / 2 % CO2 / 2.5 % CH4 / 15 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 15 ppm H2S / 100 ppm CO / 2 % CO2 / 0.75 % Iso-Butane / 15 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 25 ppm H2S / 100 ppm CO / 5000 ppm CO2 / 2.2 % CH4 / 18 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 25 ppm H2S / 100 ppm CO / 5000 ppm CO2 / 2.5 % CH4 / 18 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 25 ppm H2S / 100 ppm CO / 2 % CO2 / 2.5 % CH4 / 20.9 % O2 // N2 Available Available Available +/- 2% +/- 5% 60 40 ppm H2S / 100 ppm CO / 2 % CO2 / 2.2 % CH4 / 15 % O2 // N2 Available Available Available +/- 2% +/- 5% 60
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4-gas Quad Mixes Calibration Gas
12044
4 gas quad mixes calibration gas is premium, dutch made, calibration produced by SEMA Gases. As an official distributor of SEMA Gases, GMS Instruments can supply various unique and specific 4 gas quad mixes for calibration. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 10 ppm H2S / 50 ppm CO / 2.2 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 10 ppm H2S / 50 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 10 ppm H2S / 50 ppm CO / 2.5 % CH4 / 20.9 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 50 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 100 ppm CO / 2.2 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 100 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 100 ppm CO / 2 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 250 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 15 ppm H2S / 2 % CO2 / 2.5 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 20 ppm H2S / 60 ppm CO / 1.45 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 1.62 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.2 % CH4 / 12 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.2 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.5 % CH4 / 19 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.5 % CH4 / 20.9 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 2.5 % CH4 / 12 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 50 ppm CO / 0.9 % Iso-butane / 12 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 65 ppm CO / 1.5 % CH4 / 18.5 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 1.25 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.2 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.2 % CH4 / 20.9 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.5 % CH4 / 18.5 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.5 % CH4 / 19 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.5 % CH4 / 20.9 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 0.85 % Propane / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 0.35 % Pentane / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 0.7 % Pentane / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 1.1 % Propane / 18 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 1.1 % Propane / 19 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 0.7 % Pentane / 17 % O2 // N2 Available Available Available Dif. Dif. 24 25 ppm H2S / 100 ppm CO / 2.2 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24 40 ppm H2S / 100 ppm CO / 2.5 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 40 ppm H2S / 100 ppm CO / 2.5 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 40 ppm H2S / 2 % CO2 / 2.5 % CH4 / 15 % O2 // N2 Available Available Available Dif. Dif. 24 50 ppm H2S / 200 ppm CO / 2.2 % CH4 / 17 % O2 // N2 Available Available Available Dif. Dif. 24 50 ppm H2S / 200 ppm CO / 2.5 % CH4 / 17 % O2 // N2 Available Available Available Dif. Dif. 24 50 ppm H2S / 500 ppm CO / 2.5 % CH4 / 18 % O2 // N2 Available Available Available Dif. Dif. 24
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Argon (Ar) Calibration Gas
12050
Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in the Earth™s atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as abundant as neon (18 ppmv). Argon is the most abundant noble gas in Earth™s crust, comprising 0.00015% of the crust. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 100 % Argon œPremier (5.0) Available Available Available N/A N/A 60
- USD
Calibration gas for accurate gas detector verification and compliance
Calibration gas is used as a reference gas or gas mixture to verify and adjust the accuracy of portable and fixed gas detection systems. Proper use of calibration gas ensures that gas detectors respond correctly to defined concentrations of target gases and continue to operate within specified tolerances. Reliable calibration gas is essential for maintaining safety, regulatory compliance, and measurement accuracy in industrial, marine, and offshore environments.
Calibration gas, also referred to as span gas or test gas, is typically supplied in compressed cylinders with a precisely defined gas concentration. A calibration gas mixture may consist of a single target gas or multiple components blended to create a certified reference concentration. The composition of calibration gas is traceable to national and international standards, ensuring consistency and reliability during calibration procedures.
Before selecting the appropriate calibration gas, it is important to determine the specific gas or gas mixture required for the gas detector being calibrated. The type of sensor technology and the target gas concentration range determine which calibration gas should be used.
Calibration gas can generally be divided into two main types:
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Zero calibration gas, which contains no flammable or detectable target gases and is used to establish a baseline reference point for the gas detector
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Span calibration gas, which contains a precisely defined concentration of detectable gas and is used to verify and adjust the detector response
Zero calibration gas ensures that the gas detection system does not respond in the absence of the target gas. Span calibration gas exposes the gas detector to a controlled concentration to confirm accurate measurement and alarm activation at defined thresholds.
Vytl Controls supplies certified calibration gas solutions suitable for shipping, offshore, chemical processing, laboratory, and educational applications. Our portfolio includes traceable calibration gas mixtures manufactured in accordance with recognized national and international standards, supporting accurate gas detection performance and documented compliance.
Through reliable calibration gas supply and technical support, Vytl Controls helps operators maintain accurate gas detection systems, reduce safety risks, and meet regulatory calibration requirements across industrial and marine applications.
Gas detection and pressure calibration equipment at Vtyl Controls Group enhance safety and compliance regulations across marine, offshore and manufacturing industries. These products help maintain hazardous gases through accurate readings and pressure, temperature and electrical calibration. Browse our line-up featuring nearly 60 products offered by W&O, a Vytl Controls company!