Page 637 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-K THE CENTRAL MOTOR VEHICLES RULES, 1989 609

Flash point ˚C 55 — EN 22719
CFPP ˚C — -5 EN 116
2
Viscosity at 40˚C mm /s 2.3 3.3 EN-ISO 3104
Polycyclic aromatic % m/m 3.0 6.0 IP 391
hydrocarbons
Sulphur content (3) mg/kg — 10 ASTM D 5453
Copper corrosion — Class 1 EN-ISO 2160

Conradson carbon residue % mm — 0.2 EN-ISO 10370
(10% DR)
Ash content % mm — 0.01 EN-ISO 6245
Water content % mm — 0.02 EN-ISO 12937
Neutralisation (strong acid) mg KOH/g — 0.02 ASTM D 974
number
(4)
Oxidation stability mg/ml — 0.025 EN-ISO 12205
Lubricity (HFRR wear scan Micrometer — 400 CEC F-06-A-96
diameter at 60˚C) mm

FAME Prohibited —
(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 is 4R
(R=reproducibility). Notwithstanding this measure, which is necessary for technical
reasons, the manufacturer of fuels should 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 the questions as to
whether a fuel meets the requirements of the specifications, the terms of ISO 4259
should be applied.
(2)
The range for cetane number is not in accordance with the requirements of a
minimum range of 4R. However, in the case of a dispute between fuel supplier and
fuel user, the terms of ISO 4259 may be used to resolve such disputes provided replicate
measurements, of sufficient number to archive the necessary precision, are made in
preference to single determinations.
(3)
The actual sulphur content of the fuel used for the Type I test shall be reported.
(4)
Even though oxidation stability is controlled, it is likely that shelf life will be limited.
Advice should be sought from the supplier as to storage conditions and life.