Page 659 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-ZB THE CENTRAL MOTOR VEHICLES RULES, 1989 631

Notes:
1. Additives are necessary to fulfil the MD95 fuel specification such as cetane
improver as specified by the engine manufacturer, shall be added to the methanol
fuel, as long as no negative side effects are known. If these conditions are satisfied,
the maximum allowed amount is 10% m/m.
2. 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
is 4R (R=reproducibility). Notwithstanding this measure, which is necessary for
technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value
where the stipulated maximum value is 2R and at the mean value in the case of
quotations of maximum and minimum limits. Should it be necessary to clarify
whether a fuel meets the requirements of the specifications, the terms of ISO 4259
shall be applied.
3. Equivalent EN/ISO methods will be adopted when issued for properties listed
above.
4. Should it be necessary to clarify whether a fuel meets the requiremnets of
specifications, the terms of EN 15489 shall be applied.]
1
[ANNEXURE IV-ZB
[Refer rule 115H] ANNEXURE IV-ZB
TECHNICAL SPECIFICATIONS OF THE REFERENCE FUEL M85

1 2
Sl. Parameter Unit Limits Test method
No.
Minimum Maximum
(1) (2) (3) (4) (5) (6)

1. Research octane 107.0 109.0 EN ISO 5164
number, RON
2. Motor octane 99.0 104.0 EN ISO 5163
number, MON
3
3. Density at 15˚C kg/m Report ISO 3675
4. Vapour pressure kPa 48.0 62.0 EN ISO 13016-1
(DVPE)
3,4
5. Sulphur content mg/kg — 160 EN ISO 20846
EN ISO 20884
6. Oxidation stability minutes 360 EN ISO 7536
7. Existent gum content mg/(100 ml) — 20 EN-ISO 6246
(solvent washed)
8. Ethanol and higher % V/V 80 84 EN 1601, EN 13132
alcohols 5 EN 14517

1 Inserted vide GSR 37(E), dt. 17-1-2020, w.e.f. 17-1-2020.