Page 184 - The Central Motor Vehicles Rules, 1989

156 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

Soak Temperature = 20˚—30˚C
Soak Period = 6.30 hrs.
Preparatory running = 4 cycles
before sampling
Number of test cycles = 6
Break down of cycles = Indian driving cycle as per Annexure II
2. For passenger cars not fitted with catalytic converters, the test will continue to
be with warm start as per existing procedure, till 1-4-2000.
3. There should be no crankcase emission.
4. Evaporative emission should not be more than 2.0 gms. per test.
5. COP standards—20% relaxation in the standards for Carbon Monoxide and
combined HC+NOx would be given.
6. For vehicles fitted with catalytic converter a deterioration factor of 1.2 on Type
Approval Limits will be applicable for durability.
(ii) Three Wheelers (for all categories)—
CO —gms/km 6.75
HC+NOx —gms/km 5.40
Note : 1. The test will be as per Indian driving cycle with warm start. However,
with effect from 1st April, 1998, the test will be as per Indian driving cycle with cold
start.
2. COP standards—20% relaxation in the standards for Carbon Monoxide and
combined HC+NOx would be given.
(iii) Two-Wheelers (for all categories)
CO —gms/km 4.50
HC+NOx —gms/km 3.60
Note : 1. The test will be as per Indian driving cycle with warm start. However,
with effect from 1st April, 1998, the test will be as per Indian driving cycle with cold
start.
2. COP standards—20% relaxation in the standards for Carbon Monoxide and
combined HC+NOx would be given.
ANNEXURE I
Nominal Flow Light Absorption
G(1/2) [K(1/ml)]
42 2.26
45 2.19
50 2.08
55 1.985
60 1.90
65 1.84
70 1.775
75 1.72
80 1.665
85 1.62
90 1.575