List of Standard Gas Mixtures Gas Description 25ppm Hydrogen Sulphide (H2S) / Nitrogen 50% LEL Methane, 50 ppm CO, 18% v/v O2 Air Zero Grade (Zero Plus Price) Ammonia 1.5%/ Air Ammonia 100ppm/ Nitrogen (90ppm) Ammonia 3%/Air Ammonia 7.5%/N2 Ammonia/Syn Air 1000ppm Ammonia/Syn Air 100ppm Argon Argon 10%/Oxygen Carbon Dioxide 1000ppm/Nitrogen Carbon Dioxide 20%/Air Carbon Dioxide 5%/17% Oxygen/Nitrogen Carbon Dioxide 5%/Nitrogen Carbon Dioxide 5.0 Grade Carbon Dioxide 8%/ Oxygen 20%/Nitrogen Carbon Monoxide Carbon Monoxide 1000ppm/Nitrogen Carbon Monoxide 100ppm/Air Carbon Monoxide 20ppm/Air Carbon Monoxide 500ppm/Air Carbon Monoxide 50ppm/Air Chlorine/Nitrogen 1000ppm Chlorine/Nitrogen 100ppm Chlorine/Nitrogen 12ppm Ethane CP Grade Ethanol/Nitrogen 200ppm Ethanol/Nitrogen 216ppm Ethanol/Nitrogen 260ppm Ethylene oxide/Nitrogen 100ppm 10 Litre Cylinder Helium Hexane 400ppm/Carbon Monoxide 2%/Carbon Dioxide 13%/Nitrogen Hydrogen Hydrogen Chloride/Nitrogen 20ppm
Reactive (R)/ Non‐ reactive (N/R)
Gas Litres
R N/R N/R R R R R R R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
58 litre 110 litre 110 litre 58 litre 58 litre 58litre 58 litre 58 litre 58 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre
N/R N/R
110 litre 110 litre
N/R N/R
110 litre 110 litre
List of Standard Gas Mixtures Hydrogen Chloride/Nitrogen 1000ppm Hydrogen Cyanide 100ppm Hydrogen Sulphide 1%/Nitrogen Hydrogen Sulphide 1000ppm/Nitrogen Hydrogen Sulphide 12ppm/ Air Hydrogen Sulphide 12ppm/Carbon Monoxide 100ppm/Methane 2.5%/Oxygen 18.5%/ Nitrogen Hydrogen Sulphide 12ppm/Nitrogen Hydrogen Sulphide 13ppm/Carbon Monoxide50ppm/Methane 2.5%/Oxygen18%/Nitrogen Hydrogen Sulphide 23ppm/ Air Hydrogen Sulphide 23ppm/Carbon Monoxide 50ppm/Methane 2.5%/Oxygen 18%/Nitrogen Hydrogen Sulphide 23ppm/Carbon Monoxide 60ppm/Methane 1.45%/Oxygen 15%/Nitrogen Hydrogen Sulphide 23ppm/Carbon Monoxide 50ppm/Methane2.5%/Oxygen20.9%/Nitrogen Hydrogen Sulphide 25ppm/100ppm Carbon Monoxide/Methane 2.5%/Oxygen18%/Nitrogen Hydrogen Sulphide 25ppm/Carbon Monoxide 100ppm/Propane 1.1%/Oxygen 19%/Nitrogen Hydrogen Sulphide 25ppm/Carbon Monoxide 65ppm/Methane 1.5%/Oxygen 18.5%/Nitrogen Hydrogen Sulphide 27ppm/Nitrogen Hydrogen Sulphide 28ppm/Carbon Monoxide 100ppm/1.1% Methane/Oxygen 18%/Nitrogen ISO‐Butane 8%/Carbon Dioxide 13.8%/Nitrogen ISO‐Butane 8%/Nitrogen ISO‐Butane/ Air 0.9% IsoButane0.7%/Air ISO‐Butylene/Air 100ppm ISO‐Butylene/Air 250ppm ISO‐Butylene/Air 7ppm Methane 1%/Air Methane 1.5%/Air Methane 1.58%/Oxygen 18%/Nitrogen Methane 10ppm/Air Methane 2.2%/Air Methane 2.5%/Air Methane 2.5%/Nitrogen
R R R R R R
58 litre 58 litre 58 litre 58 litre 58 litre 58 litre
R R
58 litre 58 litre
R R
58 litre 58 litre
R
58 litre
R
58 litre
R
58 litre
R
58 litre
R
58 litre
R R
58 litre 58 litre
R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
58 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre
List of Standard Gas Mixtures Methane 4% Vol/Nitrogen Methane 5%/Carbon Dioxide 5%/Oxygen6%/ Nitrogen Methane 50%/Nitrogen Methane 5000ppm/Air N‐Butane/Air 7500ppm Nitric Oxide 2000ppm/Nitrogen Nitric Oxide 30ppm/Nitrogen Nitrogen Dioxide 1000ppm/Air Nitrogen Dioxide 20ppm/ Air N‐Pentane 250ppm/N2 N‐Pentane 3000ppm/N2 N‐Pentane 7000ppm/Air Oxygen Oxygen 2.1%/Nitrogen Oxygen 5.5%/Nitrogen Oxygen 18.5%/Nitrogen Propane Propane 1.1%/Air R12 1000ppm/Air R123 1000ppm/Air R134A 1%/Air R134A 1000ppm/Air R22 1%/Air R22 1000ppm/Air R404A 1%/Air R407A 1%/Air R407C 1%/Air R407C 1000ppm/Air R410A 2000ppm/Air R422a 5000ppm/Air R422D 1000ppm/Air R422D/Air 1000ppm R507C 1%/Air Sulphur Dioxide 1000ppm/Nitrogen Sulphur Dioxide 105ppm/Nitrogen Sulphur Dioxide 12ppm/Nitrogen Sulphur Dioxide 2000ppm/Nitrogen Toluene 5000ppm/Air
N/R N/R N/R N/R N/R N/R N/R R R R R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R R R R R R
110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 58 litre 58 litre 58 litre 58 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 110 litre 58 litre 58 litre 58 litre 58 litre 58 litre