Oil Weathering Test - Mackay Apparatus

	Oil Weathering Test - Mackay Apparatus

Oil Weathering Studies are used to predict the effect of crude oil spills and the likely behavior and persistence of the oils in the marine environment.

Oil begins weathering as soon it is exposed to the environment. The Mackay Weathering Test is designed to evaporatively weather an oil floating on seawater. Samples of the weathered floating oil are collected at various times and analysed to determine changes in the physical and chemical characteristics of the oil.

The weathering experiments can be set up to model a wide range of climatic conditions. The Mackay Apparatus allows for the setting and controlling of the water and wind temperatures as well as the velocity of the wind. The wind velocity will determine the turbulence and wave action of the water under the test conditions.

mackay apparatus

The Mackay Procedure can also be used to study the performance of chemical dispersants under a range of environmental conditions. Toxicity studies using crude oils, dispersants and oil dispersant mixtures can also be undertaken in order to assist in understanding the potential effects.

The “Swirling Flask Test” is also available to assist in determining the relative performance of different chemical dispersants under the same conditions.

The results of the tests form the basis for deciding what types and amounts of dispersants are effective for treating oil spills. This information is especially useful in spill contingency planning as well as the actual treatment of oil spills.

In this way, the environmental risk posed by the crude oils, and the various spill management and cleanup options available are better defined.

Leeder Consulting are designated "Approved Analysts" under MARPOL 73/78, the International Convention for the Prevention of Pollution from Ships. Approval is determined by AMSA, (Australian Maritime Safety Authority) as part of the National Plan to Combat Pollution of the Sea by Oil and Other Noxious & Hazardous Substances and is under the Protection of the Sea (Prevention of Pollution from Ships) Act 1983.