Calibration Gases

3M 1 HONEYWELL 3 INDUSTRIAL SCIENTIFIC CND ULC 55 MINE SAFETY 13

Industrial Scientific 43 MSA 7 Calibration Testing Gas 4 BW Technologies 3 3M™ 1

Calibration Gas 25 Gas Regulator 4 Gas Regulator with Pressure Switch 3 Calibration Gas Kit 1 Calibration Kit 1 Confined Space Kit 1 Demand Flow Regulator 1

NO2 3 CO, H2S, CH4 2 CO 2 Carbon Monoxide 2 Hydrogen Sulfide 2 100 ppm Hydrogen 1 25 ppm Ammonia 1 5 ppm Sulfur Dioxide 1 50 ppm Carbon Monoxide 1 CO, NO2, O2, Methane 1 CO2 1 Chlorine 1 Hydrogen Chloride 1 Hydrogen Sulfide, Carbon Monoxide, Pentane, Oxygen, Sulfur Dioxide 1 LEL, O2, H2S, CO 1 O2, CO, H2S, C5H12 1 Pentane 1 10 ppm Sulfur Dioxide 1 500 ppm Hydrogen 1 60 ppm Carbon Monoxide 1 Phosphine 1 Sulfur Dioxide (SO2) 1

5 ppm Nitrogen Dioxide 2 75.51 - 80.49% Nitrogen, 19.5 - 23.5% Oxygen, 0.00001 - 0.99% Sulfur Dioxide 2 76.4001 - 80.499% Nitrogen, 19.5 - 23.5% Oxygen, 0.001 - 0.0999% Carbon Monoxide 2 <= 21.5% Oxygen, <= 2% Hydrogen, Balance Nitrogen 2 10 ppm 0.0001 - 0.02% Hydrogen Chloride, 99.98 - 99.9999% Nitrogen 1 10 ppm Chlorine 1 100 ppm Carbon monoxide, 5 ppm Nitrogen Dioxide, 18% Oxygen, 2.5% Methane 1 125 ppm 0.0001 - 0.05% Hydrogen Sulfide, 99.95 - 99.9999% Nitrogen 1 15% Oxygen, 300 ppm Carbon Monoxide, 35 ppm Hydrogen Sulfide, 1.3% Methane 1 15% Oxygen, 60 ppm Carbon Monoxide, 20 ppm Hydrogen Sulfide, 2.5% Methane 1 25 ppm Hydrogen Sulfide, 100 ppm Carbon Monoxide, Pentane (25% LEL), 18% Oxygen, 10 ppm Sulfur Dioxide 1 25 ppm NO2 1 300 ppm Carbon Monoxide 1 5% Carbon Dioxide 1 50 ppm 0.001 - 0.0999% Carbon Monoxide, 76.4001 - 80.499% Nitrogen, 19.5 - 23.5% Oxygen 1 75.75 - 80.4% Nitrogen, 19.5 - 23.5% Oxygen, 0.1 - 0.75% n-Pentane 1 1 ppm 0.00001 - 0.0499% Phosphine, 99.9501 - 99.99999% Nitrogen 1 100 ppm Carbon Monoxide, Balance Nitrogen 1 25 ppm 0.0001 - 0.05% Hydrogen Sulfide, 99.95 - 99.9999% Nitrogen 1 5 ppm 0.0001 - 0.99% Sulfur Dioxide, 99.11 - 100% Nitrogen Gas 1 50 ppm Carbon Monoxide 1

34 l 9 58 l 5 103 l 2 11 l 2 116 l 2 650 l 2 100 l 1 19 l 1 36 l 1

Non-Reactive 9 Reactive 5 Demand Flow 4 Manual Shut-off 1

3 in dia x 10-3/4 in H 2 3 in dia x 10-3/4 in L 2 3-1/2 in dia x 14-1/4 in H 2 3-1/4 in dia x 13-2/3 in H 2 2-3/4 in dia x 10-3/4 in L 1 2-7/8 in dia x 11-1/2 in H 1 2-7/8 in dia x 11-1/2 in L 1 2-7/8 in dia x 12 in L 1 3 in dia x 13-3/4 in L 1 3-1/2 in dia x 14-1/2 in L 1 3-1/2 in dia x 15-1/4 in H 1 3-1/4 in dia x 14 in H 1 2-7/8 in dia x 12 in H 1

500 lb/in² 10 1000 lb/in² 3 1020 lb/in² 1 155 lb/in² 1 400 lb/in² 1 140 lb/in² 1

Stainless Steel 5 Aluminum 1

1.653 lb 2 1.4 lb 1 1.631 lb 1 1.68 lb 1

0.5 l/min 3 0 - 3 l/min 1 1 l/min 1

CGA 330 2 CGA C10 1 CGA 590 1

Econo-Cal™ 2