Rusian Fuel Oil Mazut M100GOST 10585-75 or 10585-99 Mazut is a
heavy, low quality fuel oil, used in generating plants.
Mazut-100 is a fuel oil that is manufactured to GOST
specifications, for example GOST 10585-75 or 99. (GOST is the
Russian system of standards, much like ASTM, for example). Mazut is
almost exclusively manufactured in the Russian Federation,
Kazakhstan, Azerbaijan, and Turkmenistan. This product is typically
used for larger boilers in producing steam since the BTU content is
high. The most important consideration (not the only
consideration) when grading this fuel is the sulfur content, which
can mostly be affected by the source feedstock. For shipment
purposes, this product is considered a dirty oil product, and
because viscosity drastically affect whether it is able to be
pumped, shipping has unique requirements. Mazut is much like Number
6 Oil, and is part of the products left over after gasoline and
lighter components are evaporated from the crude oil. The
main difference between the different types of Mazut-100 is the
content of sulphur. The grades are represented by these sulfuric
levels: Very Low Sulphur is mazut with a sulphur content of 0.5%
Low Sulphur is a mazut with a sulphur content of 0.5-1.0% Normal
Sulphur is a mazut with a sulphur content of 1.0-2.0% High Sulphur
is a mazut with a sulphur content of 2.0-3.5%