EPA, 1664A, 1664B, 9071B, DIN, 38409-H18, EN, 14039, ISO, 16703, 9377-2 (MOD) OSPAR, 9377-2, IP, 426, ASTM, D3921, D7066, D7678, D8193, D4281

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ERACHECK ECO combines the inherent advantages of IR methods like a fast and highly precise measurement with the CFC-free and low-cost solvent cyclohexane offering highest precision even for sub-ppm oil-in-water measurements. Being fully compliant with the advanced standard ASTM D8193, ERACHECK ECOs cost-efficient and eco-friendly measurement technology provide the most economical alternative for an oil-in-water tester on the market.

ERACHECK ECOs durable design makes it the ideal device for on-site measurement even in harsh environments like on oil drilling platforms. Typical applications for the ERACHECK ECOare total petroleum hydrocarbon (TPH) or total oil and grease (TOG) measurements.

With its easy and intuitive operation, ERACHECK ECO enables the straightforward creation of user calibrations and associations, ensuring excellent correlation with other established oil-in-water methods like the gravimetric method EPA 1664A, and IR-methods ASTM D7678, ASTM D7066 and ASTM D3921.For a more compact design, see the ERACHECK X portable analyzer.

To request a quote for the ERACHECK ECO oil-in-water tester, please click here.


features__astm compliantERACHECK ECO is fully compliant with ASTM D3921, ASTM D4281, ASTM D7066, ASTM D7678, providing both standard method and refined methodology.
Easy view of various info. Straightforward & user-friendly operation. Display colours can be changed
Convenient and easy-to-follow navigator for calibration.
Temperature Range 10-40°C, Humidity up to 90% RH, non condensing
Easy operation with sample stage at the front.
Carry Case for Asset Protection



The following accessories are recommended for purchase in sequential order (see eStore):

1st Year: No spare parts are required
2nd Year: No spare parts are required
Remaining Parts:


Available Test Method Based on ASTM D7678
Correlation To Infrared spectroscopy: ASTM D3921, D7066; DIN 38409-H18; OSPAR IR method; IP 426 Gas chromatography: ISO 9377-2, ISO 9377-2 (mod) OSPAR, ISO 16703; MADEP-EPH; EN 14039
Gravimetry: EPA 1664, EPA 9071; ASTM 4281; ISO 9377-1
Applications TPH (Total Petroleum Hydrocarbon) and TOG (Total Oil and Grease) measurements in water and soil
Extraction Method External liquid-liquid or solid-liquid extraction
Extraction Solvent Cyclohexane
Sample Volume Typically 900 mL water and 50 mL cyclohexane (min. 10 mL solvent required per measurement)
Sample Clean-up (TPH) Simplified removal of polar substances over attachable Florisil® cartridges
Measurement Time 5 min (including background measurement)
Measurement Range up to 1 000 mg/L oil-in-water
up to 36 000 mg/kg oil-in-soil
Limit of Detection 0.5 mg/L oil-in-water (900:50 mL H2 O:Solvent)
18 mg/kg oil-in-soil (20 g:40 mL Soil:Solvent)
Repeatability Enrichment factor 18 (900:50 mL H2 O:Solvent)
0–70 mg/L ± 0.35 mg/L
70–400 mg/L ± 1.0 mg/L
400–1 000 mg/L ± 2.1 mg/L
Interfaces Built-in PC with Ethernet, front and rear USB and RS232 interfaces Direct LIMS connectivity via LAN, output to printer or PC and export as CSV or PDF Optional input by external keyboard, mouse and barcode reader
Remote Control Remote service capability via Ethernet interface
PC Software ERASOFT RCS – remote control Windows® software for multi-instrument remote control, convenient data transfer and result analysis
Result Database Over 100 000 detailed test reports stored in internal memory
Alarm Tracking All alarm messages are stored in the database together with the result
Power Requirements Auto-switching 85–264 V AC, 47–63 Hz, max. 150 W (multi-voltage power supply) Field application: 12 V DC (vehicle battery) adapter available
Dimensions / Weight 29 x 35 x 34 cm (11.4 x 13.8 x 13.4 in) / 9.7 kg (21.4 lb)


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ASTM D8198

AYA-83-22245 Sampling tube (Teflon) 0,55m with luer connector for ERACHECK ECO
AYA-82-22237 Mesh inlet filter 80µ
AYA-82-22084 Outlet tube
AYA-82-22085 Waste container
AYA-82-22086 Power cable
AYA-82-22095 Gas tight syringe 20 ml
AYA-82-22096 10 cm sampling needle for EV01-A014 Glass syringe

ISO OEM 17025 Certified

ISO 17025

Our Service Center has been ISO Accredited for Competence of Calibration.


1-3 Days Service Turn Around


We are please to offer our 1-3-day service turn around from our Ayalytical Service department.


Application Support


We are pleased to offer our expertise in various disciplines including Physical Properties, Elemental and Compositional.


Dedicated Support Lines


We are pleased to offer our On-Site trainings and service calls for our Ayalytical partners.