IS : 1593 - 1982
Table 1 Requirements for fuel oils
|S. No.||Characteristic||Requirement For||Method of Test|
|Grade LV||Grade MVI||Grade MV2||Grade HV||Ref to [P : ] of IS :1448*|
|Acidity, inorganic||Nil||P : 2|
|Ash, percent by mass, Max||0.1||P : 4
|Gross, calorific value||Not limited, but to be reported
(See Note 1)
|P : 6
(for reference) and
P : (for routine)
|Relative density at 15/15oC||Not limited, but to be reported
(See Note 2)
|Flash point, [Pensky martens (closed)], Min||66oC||P : 21|
|Kinematic viscosity in centistokes at 50oC, Max||80||125||180||370||P : 25|
|Sediment, percent by mass, Max||0.25||P : 30|
|Sulphur, total, percent by mass, Max
(See Note 3)
|3.5||4.0||4.0||4.5||P : 33
and P : 35
|Water content, percent by volume, Max||1.0||P : 40|
Note1:Normally the gross calorific value is of the order of 10 000 cal/g.
Note2: Fuel oil for marine uses in diesel engines shall not exceed a limit of 0.99.
Note3: Recognizing the necessity for low-sulphur fuel oils in some specialized uses; a lower limit may be specified by mutual agreement between the purchaser and the supplier.