| Chemical dispersant
formulations and brands can be tested to quantify
their effectiveness in dispersing particular
crude oils and compare their relative performance.
These tests are undertaken at temperatures,
salinities and mixing energies typical of those
existing in the study location. Varying dispersant/oil
dose ratios can be tested so that dose-efficiency
curves can be produced.
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Dispersants can be tested
either undiluted (‘neat’) or diluted,
depending on the method to be used in the field.
It is preferable that the efficiency of the
dispersants is tested on oils that have been
weathered for various time periods.
The ‘window of opportunity’
for dispersant use can then be calculated.
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