Page 191 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 163

Soak period 6-30 hours 6-30 hours

Preparatory running before Idling of 40 seconds and 4 Idling of 40 seconds
sampling cycles

No. of test cycles 6 6

Break down of cycles Indian Driving Cycle as per Indian Driving Cycle as per
Annexure II to principal rule Annexure II to principal rule

(b) Reference fuel for testing shall be in line with that in the ECE.
(c) (i) For all types of two-wheeler and three-wheeler petrol vehicles, a
deterioration factor as specified in column (4) in the Table in this sub-rule
shall be applicable for durability:
PROVIDED that the vehicle manufacturer may opt for an ageing test of
30000 kms for evaluating deterioration factor, as per procedure that may be
laid down by the Central Government from time to time;
(ii) For all types of two-wheeler and three-wheeler diesel vehicles, a
deterioration factor as specified in column (4) in the Table in this sub-rule
shall be applicable for durability:
PROVIDED that the vehicle manufacturer may opt for an ageing test of
30000 kms for evaluating deterioration factor, as per procedure that may be
laid down by the Central Government from time to time;
(d) For diesel engine vehicles, the emission of visible pollutants (smoke) shall
not exceed the limit value to smoke density, when expressed as light
absorption co-efficient for various nominal flow as indicated in Annexure
I to sub-rule (9) of rule 115 when tested at constant speed over full load;
(e) COP frequency and Samples:—
Sr. No. Type of Vehicle Annual Production COP Frequency
Exceeding Upto
(1) (2) (3) (4) (5)
1. Two-wheeler & 250 per 6 10000 per Once every year
three-wheeler months year
2. Two-wheeler 100000 per 150000 per 6 Once every 6 months
year months
3. Two-wheeler 150000 per 6 — Once every 3 months
months
4. Three-wheeler 10000 per 75000 per 6 Once every 6 months
year months
5. Three-wheeler 75000 per 6 — Once every 3 months
months

For production volumes of less than 250 per 6 months the method as prescribed in
the proviso to Rule 126A shall apply.