| Sl No. | Characteristics | Requirements | Requirements | Requirements | Method Of Test, Ref To |
| HSD | LDO | Annex | [P : ] of IS 1448 | ||
| (1) | (2) | (3) | (4) | (5) | (6) |
| i) | Acidity, inorganic | P : 2 | |||
| ii) | Acidity, total mg of KOH/G, Max | 0.30 | P : 2 | ||
| iii) | Ash, percent by mass, Max | 0.01 | 0.02 | P : 4 | |
| iv) | Carbon residue (Ramsbottom) on 10 percent residue, percent by mass, Max | 0.351 | 1.5 (on whole sample) | P : 8 | |
| v) | Cetane number2, Min | 45 | P : 9 | ||
| vi) | Pour point3, Max | 6oC for winter and 18oC for summer4 | 12oC for winter and 21oC for summer4 | P : 10 | |
| vii) | Copper strip corrosion for 3 h at 100oC | Not worse than No. 1 | Not worse than No. 2 | P : 15 | |
| viii) | Distillation 90 percent volume recovery at oC, Max | 366 | P : 18 | ||
| ix) | Flash point5 | ||||
| Abel, o C, Min | 32 | P : 20 | |||
| Pensky-Martens, oC, Min | 66 | P : 21 | |||
| x) | Kinematic viscosity, cSt, at 40o C | 1.8 to 5.0 | 2.5 to 15.7 | P : 25 | |
| xi) | Sediments, percent by mass, Max | 0.05 | 0.10 | P : 30 | |
| xii) | Density at 15oC, kg/m2 | 820-880 | To be reported | P : 32 | |
| xiii) | Total sulphur6, percent by mass, Max | 1.0 | 1.8 | P : 33 | |
| xiv) | Water content, percent by volume, Max | 0.05 | 0.25 | P : 40 | |
| xv) | Cold Filter Plugging Point (CFPP)2, Max | 9oC for winter and 21oC for summer4) | P : 110 | ||
| xvi) | Total sediments, mg per 100 ml7, Max | 1.6 | A | ||
