Page 648 - The Central Motor Vehicles Rules, 1989

620 THE CENTRAL MOTOR VEHICLE RULES, 1989 ANNEXURE IV-T

ANNEXURE IV-T
[Refer Rule 115(18)] ANNEXURE IV-T
TECHNICAL SPECIFICATIONS OF THE REFERENCE DIESEL FUEL (B7)
Parameter Unit Limits 1 Test method
Minimum Maximum

Cetane Index 46.0 EN ISO 4264
Cetane number 2 52.0 56.0 EN ISO 5165
Density at 15˚C kg/m 3 833.0 837.0 EN ISO 12185
Distillation:

- 50% point ˚C 245.0 — EN ISO 3405
- 95% point ˚C 345.0 360.0 EN ISO 3405
- final boiling point ˚C — 370.0 EN ISO 3405
Flash point ˚C 55 — EN ISO 2719

Cloud point ˚C — -10 EN 23015
2
Viscosity at 40˚C mm /s 2.30 3.30 EN ISO 3104
Polycyclic aromatic % m/m 2.0 4.0 EN 12916
hydrocarbons
Sulphur content mg/kg — 10.0 EN ISO 20846
EN ISO 20884
Copper corrosion 3 hrs, 50˚C — Class 1 EN ISO 2160

Conradson carbon residue % m/m — 0.20 EN ISO 10370
(10 % DR)
Ash content % m/m — 0.010 EN ISO 6245
Total contamination mg/kg — 24 EN 12662

Water content mg/kg — 200 EN ISO 12937
Acid number mg KOH/g — 0.10 EN ISO 6618
Lubricity (HFRR wear scan mm — 400 EN ISO 12156
diameter at 60˚C)
3
Oxidation stability @ 110˚C h 20.0 EN 15751
4
FAME % v/v 6.0 7.0 EN 14078
1 The values quoted in the specifications are ’true values’. In establishment of their
limit values the terms of ISO 4259 Petroleum products - Determination and
application of precision data in relation to methods of test have been applied and
in fixing a minimum value, a minimum difference of 2R above zero has been taken
into account; in fixing a maximum and minimum value, the minimum difference