Page 652 - The Central Motor Vehicles Rules, 1989

624 THE CENTRAL MOTOR VEHICLE RULES, 1989 ANNEXURE IV-X

ANNEXURE IV-W
[Refer rule 115(18)]
1
[TECHNICAL SPECIFICATION OF REFERENCE HYDROGEN FUEL
FOR BS-VI VEHICLES]
Characteristics Units Limits Test Method
Minimum Maximum
Hydrogen Purity % mole 98 100 ISO 14687-1

Total Hydrocarbon mmol/mol 0 100 ISO 14687-1
1
Water mmol/mol 0 2 ISO 14687-1
Oxygen mmol/mol 0 2 ISO 14687-1
Argon mmol/mol 0 2 ISO 14687-1

Nitrogen mmol/mol 0 2 ISO 14687-1
CO mmol/mol 0 1 ISO 14687-1
Sulphur mmol/mol 0 2 ISO 14687-1
Permanent ISO 14687-1
3
Particulates
(1)
Not to be condensed.
(2)
Combined water, oxygen, nitrogen, argon: 1.900 mmol/mol.
(3)
The hydrogen shall not contain dust, sand, dirt, gums, oils or other substances in an
amount sufficient to damage the fuelling station equipment of the vehicle (engine) being
fuelled.
ANNEXURE IV-X
[Refer Rule 115] ANNEXURE IV-X
TECHNICAL SPECIFICATION FOR REFERENCE FUEL E-5

Parameter Unit Limits 1 Test method
Minimum Maximum
Research octane 95.0 — EN 25164/prENISO 5164
number, RON
Motor octane number, 85.0 — EN 25163/prENISO 5163
MON
3
Density at 15˚C kg/m 743 756 ENISO 3675/ENISO 12185
Vapour pressure kPa 56.0 60.0 ENISO 13016-1(DVPE)
Water content %v/v 0.015 ASTME 1064

1 Substituted for “TECHNICAL SPECIFICATION OF REFERENCE HYDROGEN FUEL” vide GSR 885(E),
dt. 16-12-2022, w.e.f. 16-12-2022.