Vehicular Exhaust & Auto fuel policy in India

Emission norms for passenger cars Norms CO( g/km) HC+ NOx(g/km) 1991Norms 14.3-27.1 2.0(Only HC) 1996 Norms 8.68-12.40 3.00-4.36 1998Norms 4.34-6.20 1.50-2.18 India stage 2000 norms 2.72 0.97 Bharat stage-II 2.2 0.5 Bharat Stage-III 2.3 0.35(combined) Bharat Stage-IV 1.0 0.18(combined) Emission norms for Heavy Diesel vehicles Emission Norms for 2/3 wheeler Norms CO( g/kmhr) HC (g/kmhr) NOx (g/kmhr) PM(g/kwhr) 1991Norms 14 3.5 18 - 1996 Norms 11.2 2.4 14.4 - India stage 2000 norms 4.5 1.1 8.0 0.36 Bharat stage-II 4.0 1.1 7.0 0.15 Bharat Stage-III 2.1 1.6 5.0 0.10 Bharat Stage-IV 1.5 0.96 3.5 0.02 Norms CO( g/km) HC+ NOx)(g/km) 1991Norms 12-30 8-12 (only HC) 1996 Norms 4.5 3.6 India stage 2000 norms 2.0 2.0 Bharat stage-II 1.6 1.5 Bharat Stage-III 1.0 1.0
AUTO FUEL POLICY
DIESEL SPECIFICATION YEAR 1996 2000 2005 2010 Cetane No, Min 45 48 48 51 sulphur % W/w, Max 0.50 0.25 0.25(metro) 0.05 0.035 Distillation T95 - 370 370 360 Polyaromatic - - - 11 GASOLINE SPECIFICATION RVP at 38Deg.c,kpa 35-70 - 35-60 60 BENZENE %by Vol.,max 5.0 5.0 3.0(Metro) 3.0(all) 1.0(Metro) 1.0 Lead G/m3, max 0.15 %(low pb) 0.013% (unleaded) 0.013 0.013 0.005 Sulphur % by mass, max 0.10(unleaded) 0.20 (leaded) 0.10 0.05 0.015 Aromatics % v/v., Max - - 45 42 Oxygen %by Vol., Max - - 2.0 2.7