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SEMA Gases

Hydrogen Sulphide (H2S) Calibration Gas

Hydrogen sulfide is the chemical compound with the formula H2S. It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs. It is very poisonous, corrosive, and flammable.

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Available sizes 34L, 58L, 110L
Certification tolerance +/- 10% or +/- 5% or +/- 2%
Production tolerance +/- 20% or +/- 10% or +/- 5%
Stability 24 months

Hydrogen sulfide is the chemical compound with the formula H2S. It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs. It is very poisonous, corrosive, and flammable.

Hydrogen sulfide is often produced from the microbial breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion which is done by sulfate-reducing microorganisms. H2S also occurs in volcanic gases, natural gas, and in some sources of well water. The human body produces small amounts of H2S and uses it as a signaling molecule.

 

34L 58L 110L Cert. tol. Prod. tol. Stability
(months)
5 ppm Hydrogen Sulphide // Air Available Available Available +/- 10% +/- 20% 24
5 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 10% +/- 20% 24
10 ppm Hydrogen Sulphide // Air Available Available Available +/- 10% +/- 20% 24
10 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 10% +/- 20% 24
15 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 10% +/- 20% 24
20 ppm Hydrogen Sulphide // Air Available Available Available +/- 10% +/- 20% 24
20 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 10% +/- 20% 24
25 ppm Hydrogen Sulphide // Air Available Available Available +/- 5% +/- 10% 24
25 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 5% +/- 10% 24
40 ppm Hydrogen Sulphide // Air Available Available Available +/- 5% +/- 10% 24
40 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 5% +/- 10% 24
50 ppm Hydrogen Sulphide // Air Available Available Available +/- 5% +/- 10% 24
50 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 5% +/- 10% 24
100 ppm Hydrogen Sulphide // Air Available Available Available +/- 2% +/- 5% 24
100 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 10% 24
150 ppm Hydrogen Sulphide // Air Available Available Available +/- 2% +/- 5% 24
250 ppm Hydrogen Sulphide // Air Available Available Available +/- 2% +/- 5% 24
250 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 5% 24
500 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 5% 24
1000 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 5% 24
1400 ppm Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 5% 24
1 % Hydrogen Sulphide // Nitrogen Available Available Available +/- 2% +/- 5% 24
SEMA Gases leaflet SEMA Gases leaflet_A4

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