Registration Dossier

Categories

Categories

Category name:
Petroleum Gases - LOA

Justifications and discussions

Category definition:
Petroleum Gases
Category rationale:
The ‘Petroleum gases’ category covers mono-constituent C1-C4 alkanes. Members of this category include LPGs and are products of hydrocarbon refining operations, in association with stream-cracking or are produced in association with natural gas processing such as catalytic cracking and catalytic reforming as well as processing in chemical plants. Companies importing streams will need to confirm that such streams meet the chemical description and are in domain.

By definition, from the category, these streams have an increasing carbon number, within a defined range, and hence, and the majority of the properties will show a discernible trend. It is therefore reasonable to assume that the components of petroleum gases will behave in a reasonably predictable manner, and with respect to phys-chem and environmental fate and effect properties read-across is valid.

With regard to mammalian endpoints, category members may be very volatile liquefied gases or gases with inhalation representing the primary route of exposure. Longer term health effects are not anticipated from the various constituents. The exception to this is the C4 streams which may be classified as a possible carcinogenic hazard (due to the possible presence of 1,3-butadiene at >0.1%).