H2S Analyser

Product Description

Part Number SA4000-2

IP 570 ‘Determination of Hydrogen Sulfide in Fuel Oil – Rapid Liquid Phase Extraction Method’

The H2S Analyser was developed with Lloyd’s Register’s ‘Fuel Oil and Bunker Analysis Service’ (FOBAS) along with support of other major international oil companies to offer rapid measurement of H2S in liquid petroleum products.

H2S is efficiently purged from the test sample by a combination of heat and agitation, and is measured by a H2S technological advanced specific detector. The instrument offers a cost effective solution for H2S measurement – no costly chemicals are required and there is no need for analytical preparation by an expert chemist.
The H2S Analyser is an excellent tool for supporting product Quality Control and safety ensuring product is within approved specification. It is also ideal for both product remediation treatment of feedstock components and off-spec products with fast repeat sample measurement capability.

Introducing the Vapour Phase Processor (VPP) accessory for IP 570

The latest edition of IP 570, procedure A includes the VPP accessory which provides the marine industry with a more robust specification tool for monitoring H2S. This is achieved by removing any interfering chemicals such as toluene, xylene or Mercaptans which can damage the sensor and ‘interfere’ with readings. Additionally the VPP can be used to address a broader range of petroleum products.

For information on the VPP click here

H2S Analysis of Crude Oil

Many crude oils come out of the well with high levels of H2S, but a stabilisation process usually reduces this level so the fuel is safe to handle, store and transport.

The H2S Analyser combined with the VPP offers a fast and robust means of determining H2S levels to ensure efficient treatment of Crudes. The instrument provides a cost effective alternative to traditional methods which cannot offer a true indication of H2S especially at low gas levels.

For further information about H2S Analysis of Crude Oil click here


  • Measurement range from 0-250 mg/kg H2S (0-250 ppm H2S) in the liquid phase
  • Vapour Phase Processor proven to eliminate effects of chemical interference
  • A non chemical method, no wet chemistry involved
  • Small lab bench footprint, fully portable operation
  • Suitable for monitoring residual marine fuel blends, Crude Oil, refinery feedstock compenents, cargoes & products in the distribution system
  • Critical Measurement method for Product Safety and Release


ASTM D7621, IP 570, ISO 8217