Method of calibrating an automatic apparatus for dosing hydrocarbon compounds in an aqueous medium.

摘要

The standard employed in the automatic apparatus is an aqueous solution containing a small quantity, for example 0.01 to 1 mg/l of water, of a surface-active agent preferably chosen from the group of fatty acids and nonionic surface-active agents. Application to the automatic analysis of water contaminated by hydrocarbon compounds, especially in trace form.