| Item | Standard | Test method  | 
                            
                              | Appearance  | colorless transprent  liquid  | eyeballing  | 
                            
                              | Density (20℃)g/cm3 | 0.800-0.850 | GB/T 1884-2000  | 
                            
                              | Distillation range  | Initial boiling point ℃   ≥  | 220 | GB/T 6536-1997  | 
                            
                              | 95% ℃   ≤  | 255 | 
                            
                              | Flash point ℃  ≥  | 85 | GB/T 261-1991  | 
                            
                              | Sulfur content   %  ≤  | 0.0005 | SH/T 0253-1992  | 
                            
                              | Arene   %  ≤  | 0.05 | SH/T 0409-1992  | 
                            
                              | Copper corrosion ≤(50℃  3 hrs. grade ) ≤  | 1 | GB/T 5096-1985  | 
                            
                              | SBT color    ≥  | 28 | GB/T 3555-1992  | 
                            
                              | Bromine index 8 Br/100g  ≤  | 100 | SH/T 0630-2004  | 
                            
                              |  Water-soluble acid/alkali  | None  | GB/T 259-1988 | 
                            
                              | Mechanical impurities  %(m/m) | None  | GB/T 511-1988 | 
                            
                              | Moisture  %(m/m) | None  | GB/T 260-1988 |