Extended Hydrocarbon Oil Index


DIN H53, ISO 9377-2

AC Analytical Controls® offers the Extended Hydrocarbon Oil Index analyzer to determine the content of dispersed mineral oil between n-C7 and n-C40 in water by means of gas chromatography. The analyzer provides a complete solution for the measurement of the hydrocarbon oil index, an extension to include C7-C10 lighter fractions of the oil, and an optional exclusion of peak areas of the aromatic hydrocarbons toluene, ethyl benzene, and the three isomers of xylene.

Simulated Distillation

Features & Benefits  

Meets Industry Standards and Methods

  • Complies with ISO 9377
  • Incorporates additional reporting capabilities for aromatics
  • Innovative technologies


Works with all major chromatographic data systems

  • Features a specialized AC TPI-Injector for non-discriminating injections and precise results


High throughput and powerful capabilities

  • Optimizes separation in 40 minutes
  • Increases throughput with optional dual-channel or liquid autosampler
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