Gradko - Hydrogen Sulphide Measurement

Diffusion tubes are an inexpensive way of determining the chemical cause of the odour and are easy to use, requiring no specialist skills. Sampling periods are 2-4 weeks, and therefore the tubes are used to detect the long-term presence of hazardous Hydrogen sulphide gas. Hydrogen sulphide can be detected at low levels – detection limits are in the low parts per billion range.

Sources of Hydrogen sulphide pollution:

• Breakdown of organic materials – agriculture, sewage treatment, landfill, swamps.
• Waste treatment or disposal.
• Industrial – e.g. Paper mills.
• Natural gas.

Potential implications of Hydrogen sulphide (H2S) pollution:

• Unpleasant odour.
• Headaches.
• Nausea.
• Eye irritation.
• Respiratory irritation.

• Boundary monitoring of agricultural and industrial facilities, sewage treatment plants and landfills to test for potential odour problems.
• Indoor air monitoring in treatment facilities.
• Ambient air monitoring around natural sources.
• Indoor air monitoring to identify the cause of health complaints.

• DIF200RTU-RA – Hydrogen sulphide diffusion tube with analysis
• DIF1000 – Push-in plastic fixing clip
• DIF2000 – 360mm fixing strap
• DIF2001 – 760mm fixing strap
• DIFSHLTR-S – Shelter for up to 3 tubes (optional)

Analysis is carried out in our UKAS accredited laboratories. Results are provided within 10 working days or can be fast-tracked by arrangement.