• Allows the rapid and reliable detection of oil contaminations of water and soil
• The sensitivity largely depends on the nature of the respective hydrocarbon
• For detection of oil in soil, press the paper firmly against the soil to be tested and rinse with clear water
• To determine oil in water, move the paper back and forth a few times in the sample
• In case of volatile hydrocarbons, the color reaction of the test paper has to be evaluated immediately
• Virage: pale blue ? dark blue
• Limit of sensitivity:
- Petroleum ether: 250 mg/l
- Gasoline: 10 mg/l
- Fuel oil: 5 mg/l
- Lubricating oil: 1 mg/l
