Furnace Oil

IS : 1593:2018

Table 1 Requirements for fuel oils (Clause 4.6)

S. No. Characteristic Requirement For Method of Test
Grade LV Grade MVI Grade MV2 Grade HV Ref to [P : ] of IS            :1448*
(1) (2) (3) (4) (5) (6) (7)
  Acidity, inorganic Nil P : 2
  Ash, percent by mass, Max 0.1 P : 4
(Method A)
  Gross, calorific value Not limited, but to be reported
(See Note 1)
P : 6
(for reference) and
P : (for routine)
  Density at 15oC kg/m3 or Relative density at 15.6/15.6°C 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 (Max) 80 - 125 125 - 180 180 - 380 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
(for reference)
and P : 35
(for routine)
  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: Recognizing the necessity for low-sulphur fuel oils in some specialized user, a lower limit may be specified by mutual agreement between the purchaser and the supplier.

Note3: In case of dispute, this method shall be referee method

Note4: All the test method referred to in this standard method include a precision statement. The interpretation of results based on test method precision shall be used whenever applicable. In case of dispute the procedure described in ISO 4259 shall be used.

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