This test method covers the determination of dissolved gases Methane, Ethane, Ethylene and Propane in drinking, waste, and ground waters. Dissolved gases in water can be analyzed up to the saturation concentration. If the water is super saturated with the dissolved gas, the sample would need dilution. This test method has an analytical range from 10ppb to the saturation concentration of the dissolved gases.
Hydraulic fracturing in conjunction with horizontal drilling in order to tap natural gas reservoirs has sometimes caused issues with dissolved gas contamination of drinking water. The dissolved gases can be hazardous to the environment and man. Static headspace sampling is generally applicable for sampling these compounds. However, as these compounds are extremely volatile, a closed sampling system is required. This test method can be used for quantitatively determining dissolved gases in both ground and drinking water reservoirs.
(Robert S. Kerr) RSK-175 Standard Operating Procedure, fracking waters
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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