Gas Detection
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.
| 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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