VWR® offers a complete range of products for the determination of the hydrocarbon oil index (HOI) in accordance with EN ISO 9377-2 (DIN H53).

• All standards are CRMs according to ISO 17025 and ISO 17034
• Shelf life of 24 months
• Storage: 2 – 8°C
• Supplied with a detailed, batch-specific certificate of analysis

The Hydrocarbon Oil Index (HOI) is defined as the total amount of compounds which can be extracted from the sample (drinking water, surface water and waste water) with a non-polar solvent having a boiling point between 39°C and 69°C .

In addition, the compounds must not absorb on Florisil® (magnesium sulphate) and must elute between n-decane (C10H24) and n-tetracontane (C40H82) when analyzed by GC using an apolar analytical column.