Page 647 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-S THE CENTRAL MOTOR VEHICLES RULES, 1989 619

Denaturants for ED95 fuel, if required, shall be approved by the vehicle
manufacturer or shall be either Ethyl Tert Butyl Ether (ETBE); or Iso butanol;
or Methyl Ethyl Ketone (MEK); or Tert butanol or Iso Propanol.
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 requirements of
the specifications, the terms of EN 15489 shall be applied.]
1
[ANNEXURE IV-SA
[Refer Rule 115] ANNEXURE IV-S
TECHNICAL SPECIFICATIONS OF THE REFERENCE FUEL E100
(AS PER IS 15464:2004)

Sr. No. Characteristic Requirement
1 Relative density at 15.6/15.6˚C, max 0.7961
2 Ethanol content percent by volume at 15.6/15.6˚C, min 99.5
(excluding denaturant)
3 Miscibility with water Miscible

4 Alkalinity Nil
5 Acdity (as CH3COOH) mg/l, max 30
6 Residue on evaporation percent by mass, max 0.005
7 Aldehyde content (as CH3CHO) mg/, max 60
8 Copper mg/kg, max 0.1
9 Conductivity, mS/m, max 300
10 Methyl alcohol, mg/litre, max 300

11 Appearance Clear and bright]

1 Substituted for “ANNEXURE IV-S [Refer rule 115(E)” vide GSR 156(E), dt. 8-3-2021, w.e.f. 8-3-2021.