BS 6068-2.72(2000) : 2000

Foreword
1 Scope
2 Normative references
3 Term and definition
4 Interferences
5 Principle
6 Reagents
7 Apparatus
8 Sampling and sample preservation
9 Procedure
10 Test report
11 Precision
Annex A (informative) Example of a column and a
                      microseparator
Annex B (informative) Examples of gas chromatograms of
                      mineral oil standard and water samples
Annex C (informative) Determination of boiling range of a
                      mineral oil from the gas chromatogram
Bibliography

Defines a procedure for the determination of the hydrocarbon oil index in waters by means of gas chromatography. This method is applicable for surface water, waste water and water from sewage treatment plants and permits the determination of a hydrocarbon oil index in concentrations above 0.1 mg/l. This method does not apply to the quantitative determination of the content of volatile mineral oil. However, on the basis of the peak pattern of the gas chromatogram, certain qualitative information on the composition of the mineral oil contamination can be derived.