Page 650 - The Central Motor Vehicles Rules, 1989

622 THE CENTRAL MOTOR VEHICLE RULES, 1989 ANNEXURE IV-U

Vapour Lock Index (VLI)
(a) Summer, max 1050 1050

(b) Other months, max 1100 1100
Benzene Content, max % volume 1 1
Copper strip corrosion for 3 hrs @ 50˚C, max rating Class 1 Class 1
Olefin content, max % volume 21 18

Aromatics content, max % volume 35 35
Oxygen content, max % mass 3.7 4.5
Oxygenates Content
(a) Methanol, max % volume 3 3

(b) Ethanol, max % volume 10 10
(c) Iso-propyl alcohol, max % volume 10 10
(d) Iso-Butyl alcohol, max % volume 10 10
(e) Tertiary-butyl alcohol, max % volume 7 7

(f) Ethers containing 5 or more carbon atoms per % volume 15 15
molecule, max
(g) Other oxygenates, max % volume 8 8
Note:
1. Test methods and other provisions and details along with the requirements
as given above shall be issued by Bureau of Indian Standards.
2. The Aromatics content, (max) shall be permitted up to 40% in North Eastern
States till 01.04.2023.