Page 643 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV P THE CENTRAL MOTOR VEHICLES RULES, 1989 615

Kinematic Viscosity @ 40˚C Cst 2.0-4.5
Density @15˚C kg/m 3 820-845

Total Sulphur, max mg/kg 50
Water content, max mg/kg 200
Cold filter Plugging point (CFPP)
(a) Summer, max ˚C 18
(b) Winter, max ˚C 6
Total contaminations, max mg/kg 24
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Oxidation stability, max g/m 25
Polycyclic Aromatic Hydrocarbon (PAH), max % mass 11

Lubricity, corrected wear scar diameter (wsd 1,4) mm (microns) 460
@ 60˚C, max
Copper strip corrosion for 3 hrs. @ 50˚C Rating Class - 1
Note :
1.These density and 95 per cent distillation recovery temperature limits
shall be company pool average values. However, all samples shall meet
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the density @ 15˚C limits of 820-860 kg/m and 95 per cent minimum
distillation recovery at 370˚C.
2.For diesel processed from Assam crude, relaxation of CN & CI by 3 units
and density shall be applicable as provided in the present BIS
specification.
3.Test methods and other provisions/details along with the requirements
as given above shall be issued by Bureau of Indian Standards.
4.These standards specifications have been finalized by the Expert
Committee after discussions with the automobile and oil industry as per
Auto Fuel Policy.

ANNEXURE IV-P
[Refer Rule 115A(7)] ANNEXURE IV P
DIESEL FUEL SPECIFICATIONS
Characteristics Minimum Maximum Test Method
Cetane Number 52 54 EN-ISO 5165
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Density at 15˚C (kg/m ) 833 837 EN-ISO 3675
Distillation : in ˚C
50% point (˚C) 245 —
95% point (˚C) 345 350 EN-ISO 3405
Final boiling point (˚C) — 370
Flash point (˚C) 55 — EN 22719