The standard describes a method for dosing hydrocarbons in an aqueous medium. The method is applicable for hydrocarbon contents greater than 0.2 mg/kg. It is less appropriate when the sample to be analyzed contains predominantly aromatic hydrocarbons.
NBN T 91-502-1977 history
1977NBN T 91-502-1977 Water analysis methods - Determination of hydracarbons by infrared spectrophotometry