90 # gasoline (test results): Density (20 ℃) kg/m3: 0.7261; Lead content g / l: No; gum mg/100ml: 3.0; sulfur content% (m / m): 0.05; thiol: through; copper corrosion: 1a; soluble acid or alkali: None; mechanical impurities and water: none; benzene content: None; oxygen content% (m / m): 0.5; aromatic content% (v / v): 28; olefin content% (v / v): 20; iron content% (g / L): 0.01; manganese content% (9g / L): 0.015; 10% evaporation temperature ℃: 48; 50% evaporation temperature ℃: 79; 90 % evaporation temperature ℃: 152; final boiling point ℃: 171; residues ml: 1; methanol content% (m / m): 0