Page 635 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-J THE CENTRAL MOTOR VEHICLES RULES, 1989 607

ANNEXURE IV-I
[Refer Rule 115(14)] ANNEXURE IV-I
NATURAL GAS (NG)
Reference Fuel G20
Characteristics Units Basis Limits Test method
Mini- Maxi-
mum mum
Composition:
Methane % mole 100 99 100 ISO 6974
Balance
[Inerts+C2/C2+] % mole — — 1 ISO 6974
N2 % mole — — — ISO 6974
Sulphur content mg/m 3(1) — — 50 ISO 6326-5
(1)
Value to be determined at standard conditions 293, 2K (20˚C) and 101, 3 kPa
1
[ANNEXURE IV-J
[Refer Rule 115(15)] ANNEXURE IV-J
TECHNICAL SPECIFICATION OF THE REFERENCE FUEL
TO BE USED FOR TESTING VEHICLES EQUIPPED
WITH GASOLINE ENGINES
(1)
Parameter Unit Limits Test Method
Minimum Maximum
Research octane number, RON 95.0 — EN 25164
Motor octane number, MON 85.0 — EN 25163
Density at 15˚C kg/m 3 740 754 ISO 3675

Reid vapour pressure kPa 56.0 60.0 PrEN ISO; 13016-1;
(DVPE)
Distillation :
–evaporated at 70˚C % v/v 24.0 40.0 EN-ISO 3405
–evaporated at 100˚C % v/v 50.0 58.0 EN-ISO 3405

–evaporated at 150˚C % v/v 83.0 89.0 EN-ISO 3405
–final boiling point ˚C 190 210 EN-ISO 3405
Residue % v/v — 2.0 EN-ISO 3405
Hydrocarbon analysis :
–olefins % v/v — 10.0 ASTM D 1319

1 Inserted vide GSR 84(E), dt. 9-2-2009, w.e.f. 9-2-2009.