Page 197 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 169

10. The vehicles meeting the above norms shall use commercial fuel as per BIS
specification IS:1460-2000 (Amendment No. I—January, 2003) (Fourth
Revision) for Diesel and IS:2796-2000 (Amendment No. II—February, 2003)
(Third Revision) for Gasoline.
11. In case of diesel vehicles, the engine power shall be measured on engine
dynamometer and the measured power shall not differ from the specified
power as given below:
(i) For Type approval: ± 2% at maximum power point and + 6% and - 2%
at other measurement points.
(ii) For conformity of production:-5% /+8% at maximum power point.
(iii) Testing procedures shall be in accordance with Chapter 6 of Part IV of
the reference document MOST/CMVR/TAP-115/116, as amended
from time to time by the Government of India in the Ministry of
Shipping, Road Transport and Highways.
12. The vehicles mentioned in clause (D) shall also comply with rule 115 (2).
(E) Diesel vehicles with GVW exceeding 3500 kg and fitted with advanced exhaust
after treatment system including De-NOx catalyst and/or particulate trap shall
additionally conform to the following norms:—
Limit Values for Types Approval (TA) as well as (COP)

Engine Transient Cycle (ETC)

CO (g/kWh) HC (g/kWh) NOx (g/kWh) PM (g/kWh)

(3)
5.45 0.78 5.0 0.16/0.21
(3) For engines having swept volume of less than 0.75 litre per cylinder and rated
power speed of more than 3000 rpm.
Notes:
1. The test shall be on engine dynamometer.
2. There shall be no relaxation for COP purposes.
3. The gaseous and particulate emissions are to be determined on the ETC test
as described in EEC document 1999/96/EC and comply with the norms
given above.
4. In addition, the gaseous and particulate emissions are to be determined on
the ESC test as described in EEC document 1999/96/EC and meet the
prescribed gaseous and particulate emissions norms as given in clause (D).
5. In addition, the smoke opacity is to be determined on the ELR test as
described in EEC document 1999/96/EC and meet the prescribed smoke
density norms as given in clause (D).
6. The reference fuel shall be as specified in Annexure IV F.