Drager Hydrogen Sulphide 5/a-D (0.63-60 ppm) Diffusion Tube
Please note this product is in phase-out, check stock levels before ordering by calling 0141 771 7749.
Drager Short Term Detection Tubes: Detects a range of substances incl. Hydrogen Sulphide 5/a-D, Hydrogen Sulphide 10/a-D.
Note: This product has a shelf life of 2 years.
Hydrogen Sulphide 10/a-D
Application Range | |
Standard Range | Measurement Time |
10 to 300 ppm | 1 h |
5 to 150 ppm | 2 h |
2.5 to 75 ppm |
4 h |
1.3 to 40 ppm | 8 h |
Standard Deviation | ± 20 to 25 % |
Color Change | white - brown |
Ambient Operating Conditions
Temperature | 0 to 40 °C |
Absolute Humidity | < to 15 mg H2O / L |
Reaction Principle
H2S + Pb2+ - PbS + 2 H+
Cross Sensitivity
50 ppm Hydrochloric acid does not interfere. In the presence of 50 ppm ammonia for 2 hours, the hydrogen sulfide indication will show minus errors of about 20%. The influence of chlorine and nitrogen dioxide in the TLV range is negligible, but higher concentrations lead to minus errors. The influence of sulfur dioxide in the TLV range is also negligible, but higher concentrations lead to plus errors.
Hydrogen Sulphide 10/a-D
Application Range | ||
Standard Range | Measurement Time | |
10 to 300 ppm | 1 h | |
5 to 150 ppm | 2 h | |
2.5 to 75 ppm | 4 h | |
1.3 to 40 ppm | 8 h | |
Standard Deviation | ± 20 to 25 % | |
Color Change | white - brown | |
Ambient Operating Conditions | ||
|
0 to 40 °C | |
Absolute Humidity | < to 15 mg H2O / L | |
Reaction Principle | ||
H2S + Pb2+ - PbS + 2 H+ | ||
Cross Sensitivity | ||
50 ppm Hydrochloric acid does not interfere. In the presence of 50 ppm ammonia for 2 hours, the hydrogen sulfide indication will show minus errors of about 20%. The influence of chlorine and nitrogen dioxide in the TLV range is negligible, but higher concentrations lead to minus errors. The influence of sulfur dioxide in the TLV range is also negligible, but higher concentrations lead to plus errors. |