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Eracheck Eco


ERACHECK ECO combines the inherent advantages of IR methods, like high speed and sub-ppm precision with the use of the CFC-free and low-cost extraction solvent cyclohexane. ERACHECK ECO is the only analyzer on the market being fully compliant with the latest standard ASTM D8193. The cost-efficient and eco-friendly measurement technology provides the most economical alternative for oil-in-water testing on the market.

ASTM D8193

Correlation to
ASTM D7678
ASTM D3921
ASTM D7066
DIN 38409-H18
ISO 9377-2 (MOD) OSPAR
IP426ISO 9377-2
ISO 16703
EN 14039
EPA 1664A
EPA 1664B
EPA 9071B
ASTM D4281

ASTM D8193
ASTM D8193 describes a direct IR transmission measurement of oils and greases in the extraction solvent. The method does not require any solvent evaporation like gravimetric or solventless IR methods and therefore allows the measurement of all fractions of the sample, including the light ends, with sub-ppm precision (repeatability SD: 0.2 mg/L oil-in-water). Compared to GC methods that do not detect fractions eluting outside the defined time window, ASTM D8193 enables a more complete fraction of extracted hydrocarbons much faster and easier.

User-specific Calibrations
With ERACHECK ECO’s easy-to-operate design and its intuitive software, user-specific calibrations or correlations are easily created. This enables excellent correlations to gravimetric methods (EPA 1664A) and gas chromatography (e.g. ISO 9377-2 (mod) OSPAR).
With the calibration defined in ASTM D8193, the correlation to other IR methods (ASTM D7066, ASTM D7678 etc.) is also readily assured. A direct measurement of the extract results in the total oil and grease (TOG) concentration, whereas filtration over a disposable Florisil® solid phase extraction cartridge attached to the inlet of the instrument removes the polar components resulting in the total petroleum hydrocarbon (TPH) concentration.

Maximum Connectivity
ERACHECK ECO is a compact stand-alone analyzer equipped with an industry proven 8.4″ multilingual color touchscreen and a built-in industrial PC. State-of-the-art connectivity options like LAN, 5 x USB and RS232 allow you to attach the latest printers, keyboards and bar code scanners or to connect the instrument to any Laboratory Information Management System (LIMS). Furthermore, the fully automated measurement enables the use of eralytics’ directly attached 10-position autosampler for higher sample throughput and even more efficiency.

Unique Measurement Precision

ERACHECK PRO shows a linear behavior over the broad measurement range of 0.1 to 2000 mg/l during oil-in-water testing. At the low end of the concentration ranges ERACHECK PRO offers a repeatability of 0.1mg/l and at the high end it still delivers a repeatability as good as 0.1%. ERACHECK PRO also perfectly correlates to gas chromatography (e.g. ISO 9377-2 (mod) OSPAR), gravimetric (e.g. EPA 1664A) and infrared (e.g. ASTM D7066) oil-in-water testing methods.

Measurement Procedure

  • Perform the sample extraction: Typically 900ml water sample are extracted with 50ml cyclohexane
  • Select the calibration to use
  • Enter sample ID, water and cyclohexane volumes and the operator ID
  • Chose if you are using the cartridges
  • Press the RUN button
  • Run a background measurement
  • Run a sample measurement

You are guided through the whole procedure by instructions on the screen. The measurement procedure is visualized on the screen and after the measurement the result is displayed. The extraction parameters for the oil-in-water testing can be adjusted to your needs.


ERACHECK Feature Video

  • Latest laser technology (QCL) for highest precision
  • Patented measurement principle for oil-in-water testing
  • Use of an environmental friendly and low cost extraction solvent instead of CFCs
  • Fast & easy measurement of low concentration of oil-in-water or oil-in-soil
  • Excellent correlation to a wide range of international standards
  • Usable for a wide range of applications

Operation Video
Watch this video to get an overview on the sample handling and measurement procedure of ERACHECK during oil-in-water testing.

Use of ERACHECK to Determine Reduction of Spilled Diesel

In this video by Directa Puls SpA the ERACHECK is used to determine the water quality of before a diesel spill and after the diesel spill is cleaned up by Basic G+ (a super-expanded, accordion-like graphitic product).

As it can be seen in the video, ERACHECK is able to measure an aqueous hydrocarbon content in the range of 0.2 mg/l.

Resources & Downloads

Eracheck Eco Enquiry 

For more information or to arrange a call from one of the Cea Analytical Team, please complete the contact form below.  If your enquiry is urgent, please call us on 1300 552 725.

Eracheck Eco Enquiry








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