Hydrocarbon oil index: 2 x 1 L per sample, no stabilisation
Phenol index: 2 x 1 L per sample; stabilisation at pH<4 with H3PO4
One ground water and one drinking water sample (fortified)
The extent of participation is selectable: hydrocarbon oil index and phenol index or
hydrocarbon oil index only (selection of phenol index only is not possible).
Evaluation of SP05 will be carried out in a joint report.
Data evaluation