3-gas Mixes | SEMA Gases

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3-gas Mixes

SEMA Gases is a manufacturer of span gases in disposable cylinder cans from the Netherlands, established from the want to create a label which is applicable for all brands of gas detection equipment. The products of SEMA Gases are used for calibration of portable gas detection instruments and calibration of fixed gas detection systems. SEMA Gases produces single gases (flammable gases, oxygen, toxic gases) and gas mixtures (2, 3, 4 or 5 gas mixtures) in various cylinder size up to 110 ltr.

3-gas Mixes – Calibration Gases

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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