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GLOSSARY

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Specifications

Term referring to the properties of a given crude oil or petroleum product, which are "specified" since they often vary widely even within the same grade of product. In the normal process of negotiation, seller will guarantee buyer that product or crude to be sold will meet certain specified limits, and will agree to have such limits certified in writing.

SSF

Seconds Saybolt Furol

SSU

Seconds Saybolt Universal

Stoke

The unit of kinematic viscosity

Sulphur

A nonmetallic element that occurs in association with salt diapirs throughout much of the onshore and offshore Gulf of Mexico region. All offshore sulphur is mined by the Frasch process, which uses hot brine to melt sulphur out of the enclosing rock so the molten sulphur can be recovered.