Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbon (TPH) in Water and Wastewater with Solvent Extraction Using Non-Dispersive Mid-IR Transmission Spectroscopy.
Get more information about the standard at ASTM D8193-18.
ASTM D8193 is a standard test method for determining the concentrations of Total Oil and Grease (TOG) and Total Petroleum Hydrocarbons (TPH) in water and wastewater samples. This method utilizes solvent extraction with cyclohexane followed by non-dispersive mid-infrared (IR) transmission spectroscopy to provide accurate measurements of these contaminants. Monitoring TOG and TPH levels is essential for environmental protection and regulatory compliance, as these substances can have detrimental effects on aquatic ecosystems and public health.
Details
The ASTM D8193 test method is applicable to the quantification of TOG and TPH in various water matrices, including domestic and industrial wastewater. It defines TOG as materials extractable by cyclohexane and measurable by IR absorption in the 1370–1380 cm⁻¹ range. TPH is determined by treating the extract with Florisil to remove polar substances before IR measurement, isolating the hydrocarbon fraction. The method covers a concentration range from 0.5 mg/L to 1000 mg/L, with a method detection limit (MDL) of 0.5 mg/L. Adjustments in sample or solvent volumes can extend this range.
Industries and Applications
ASTM D8193 is widely applied in the following industries and applications:
- Environmental monitoring agencies: Utilize this method to assess water quality and enforce environmental standards, ensuring that pollutant levels remain within acceptable limits
- Wastewater treatment plants: Apply this standard to evaluate the efficiency of treatment processes in removing oils and greases, optimizing operations to meet regulatory requirements
- Industrial facilities: Employ this test method to monitor effluent discharges, preventing environmental contamination and avoiding potential fines or sanctions
- Oil and gas Industry: Use this standard to detect and quantify hydrocarbon contamination in water sources, facilitating effective spill response and remediation efforts
- Research laboratories: Implement this method in studies focused on water pollution, providing accurate data for environmental impact assessments and the development of pollution control strategies