The Detect-Oil-In-Soil (Sudan IV) field screening test for hydrocarbons is an inexpensive, simple, and virtually instant qualitative test for identifying the presence of Oils (LNAPLS and DNAPLS) in soil. The only restriction is that the contaminants be sufficiently light in color to ensure the dye can be seen. This product is also suitable for screening TCE, TCA and PCE materials. The hydrocarbon soil test kit was designed to overcome the historic difficulties with field screening tests and was therefore developed according to a very specific set of criteria:
Suspected petroleum or DNAPL contaminated soil is added to the sample bottle, to which potable water is also added and the contents shaken vigorously. A rapidly dissolving cube is attached to the cap. The cube has a Sudan IV based red oil soluble dye and a fluorescing yellow/green water-soluble dye disbursed throughout its surface.
The red dye stains petroleum products (including DNAPLs) red; while the green dye colors the water to provide a visual contrast between the two colors. When free petroleum floats to the surface it attaches to an EPS bead that is supplied with the kit and/or attaches to the walls of the container. From concentrations below about 2,500 ppm to the limit of detection (which is about 500 ppm) the EPS bead will turn pink. At very low concentrations we suggest using an used kit as a comparison for the color depth of the EPS bead as the color change may be slight.
The range of detection is approximate because a soil’s affinity for oil will vary. Since DNAPL is heavier than water it is typically seen towards the bottom of the jar. The DNAPL can also be seen as red “beading” on the sides of the container.
During the excavation of contaminated soil, the Detect-Oil-In-Soil (Sudan IV) soil test kit will permit rapid assessment of the depth and direction of contaminants, thus reducing the time and costs typically associated with field screening methodology.
Forestry, environmental, aerospace, shipping/marine, railways, manufacturing, petrochemical, utilities, construction and other companies involved with oil leak detection and site remediation.
The Detect-Oil-In-Soil (Sudan IV) kits are currently used for a wide variety of purposes including:
In our ongoing efforts to make assessments of our products as easy and convenient as possible – we are pleased to offer the following options for purchase:
Demeter Enviro is a reputable woman-owned American-based manufacturer of professional soil test kits for hydrocarbon testing. Our disposable soil sample test kit provides real-time results using innovative field characterization technology for identifying the presence of hydrocarbons, oils and petroleum products in the soil, recommended by major environmental companies and environmental companies.
Best soil test kits to detect total petroleum hydrocarbons (TPH) and petroleum-based chlorinated solvents, including LNAPLs and DNAPLs
Perfect for cost-effective site characterization of soil without special training or external instrumentation
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