Some petroleum products can cause serious health problems when they are drunk accidentally. Even the smallest amounts can enter the respiratory tract and the lungs due to its low viscosity (fluidity). There they release chemically induced pneumonia, called aspiration pneumonia.
For the classification of such mineral oils (according to the CLP Regulation1 for all hydrocar-bons), the viscosity limit was 7mm2/s until 1st December 2010. Mineral oils or mineral oil preparations were then classified with the risk phrase R65 “Harmful, may cause lung damage if swallowed”. However, the viscosity limit of 7mm2/s has been increased to 20.5mm2/s under the CLP Regulation, whereby more products have to be classified.
The new viscosity limit applies from the entry into force of the CLP Regulation. Thus, since 1st December 2010, substances must be classified and labelled according to table 1, mixtures as of 1st June 2015.
When a mixture contains ≥ 10% of a mineral oil, which is classified in category 1, and when this mixture´s kinematic viscosity, measured at 40°C, is ≥ 20.5 mm2/s, this mixture itself is to be classified accordingly.