Hydrogen (H2)
Hydrogen is the chemical element with the symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table. Hydrogen is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.
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.
Hydrogen Calibration Gases
| 34L | 58L | 110L | Cert. tol. | Prod. tol. | Stability (months) |
|
|---|---|---|---|---|---|---|
| 100 ppm Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 10% | 60 |
| 100 ppm Hydrogen // Nitrogen | Available | Available | Available | +/- 2% | +/- 10% | 60 |
| 200 ppm Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 500 ppm Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 0.1 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 0.2 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 0.4 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 0.5 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 0.8 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 1 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 1 % Hydrogen // Nitrogen | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 1.2 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 1.6 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 2 % Hydrogen // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 10 % Hydrogen // Nitrogen | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| 100 % Hydrogen “Premier Plus” (5.0) | Available | Available | Available | N/A | N/A | 60 |
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