Test strips for semi-quantitative determinations
Oil test paper
REF 907 60
This test paper allows the fast 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.
Type:
test paper
Limit of sensitivity: see table
Sufficient for:
100 tests
Color change:
pale blue
®
dark blue
Description of individual parameters and tests
Substance
Petroleum ether (b. p. 40–80 °C)
250
400
Gasoline (high octane)
10
25
Fuel oil
5
10
Lubricating oil
1
5
Color change
Lower limit
mg/L of water
Clearly detectable
mg/L of water
AQUATEC
REF 907 42
This test allows the quick and easy measurement of the water amount at the bottom of petrol and fuel oil tanks. In petrol and fuel oil tanks
water accumulates over time forming a layer at the bottom. To measure this layer the PE strip is fixed onto a flat steel sheet so that the lower
ends coincide.
It is then lowered into the tank with a tin cord until it reaches the bottom. Any water present beneath the fuel will dissolve the blue layer
(testing time about 15–20 seconds). The thickness of the water layer corresponds to the colorless part of the strip.
Type:
test strips
Limit of sensitivity: depending on the geometry of the tank, about 1–2mmwater layer
Sufficient for:
100 tests
Color change:
blue
®
colorless
MN
58
