Calibration Gas CylindersDisposable pressurised cans without regulators103 Litre Cylinders 99171 10ppm Methane in Air 99125 800ppm Methane in Air 99127 0.45% Methane in Air (9% LEL) 99121 1% Methane in Air 99159 2.5% Methane In Air (50% LEL) 99129 100% Methane 99131 0.15% Propane in Air (7.5% LEL) 99132 800ppm Propane in Air 99133 1% Propane in Air (50% LEL) 99135 100% Propane 99122 0.075% Butane in Air (5% LEL) 99137 0.75% Butane in Air (50% LEL) 99120 0.89% Butane in Air 99140 800ppm Pentane in Air 99141 0.7% Pentane in Air (50% LEL) 99123 96ppm Hydrogen in Air 99124 800ppm Hydrogen in Air 99126 2% Hydrogen (50% LEL) 99157 Hydrocarbon-Free Air (20.9% O2 in N2) 99161 1% CO2 99163 3% CO2 99164 5% CO2 99165 100% CO2 99167 100ppm Carbon Monoxide in Air 99145 500ppm Carbon Monoxide in Air 99169 2.5% Methane, 50ppm Carbon Monoxide in Air 99160 100% Nitrogen 58 Litre Cylinders 99143 50ppm Hydrogen Sulphide in Nitrogen 99147 20ppm Sulphur Dioxide in Air 99148 10ppm Ethylene Oxide in Nitrogen 99149 20ppm Nitrogen Dioxide in Air 99151 10ppm Chlorine in Nitrogen 99153 50ppm Ammonia in Nitrogen 99155 100ppm Nitric Oxide in Nitrogen 99175 5ppm Phosphine in Nitrogen 99173 20ppm Hydrogen Cyanide in Nitrogen 99144 2.5% Methane, 100ppm CO, 25ppm H2S in Air 99177 1% Propane, 100ppm CO, 25ppm H2S in Air Accessories 99116 Balanced Flow Regulator (Pumped Instruments) 99117 Direct Flow Regulator (Non-Pumped Instruments) 99103 Carrying Case 99107 Pressure Gauge 99180 Recycle Tool |