ASTM D7678

The ERACHECK ECO is the most ecological and economic solution for the fast and easy measurement of sub-ppm concentrations of total oil and grease (TOG) and total petroleum hydrocarbons (TPH) in water and in soil in the lab as well as in the field (wide measuring range: 0.5 to 1000 ppm). The measurement procedure as well as the measuring range and precision are in full compliance with the latest ASTM standards for oil in water testing ASTM D7678.

Common Applications include:

  • Industrial proces and waste water
  • Reinjection water
  • Upstream oil recovery monitoring
  • Environmental monitoring of soil and water
  • Layer monitoring during oil-drilling
  • Total petroleum hydrocarbon (TPH) measurements
  • Total oil and grease (TOG) measurements

ERACHECK ECO Informational Video

ERACHECK ECO Operational Video

Eco-Efficient Technology

  • Unique dual-detector optical design and optical filters without CFC's
  • Fast, CFC-free measurement
  • ASTM D7678 solvent cyclohexane is readily available and inexpensive

Ecology Meets Economy

  • Fully-automated m easurement requires no evaporation 
  • No moving parts makes it ideal for field measurements

Dimensions (W × D × H) 29 cm × 35cm × 34cm (11.4in × 13.8in × 13.4in)
Weight 9.7kg (21.4lb)
Test methods Based on ASTM D7678
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 Florsil® cartridges
Measurement Times 5 minutes, 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 H20:Solvent)
18 mg/kg oil-in-soil (20 g:40 mL Soil:Solvent)

Enrichment factor (900:50 mL H20:Solvent)
0 to 70 mg/L ± 0.35 mg/L

70 to 400 mg/L ± 1.0 mg/L
400 to 1,000 mg/L ± 2.1 mg/L

Sample Introduction Directly from the sample container by an integrated pump
Result Database Over 100,000 detailed test reports stored in internal memory
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) adaptor available


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