Quality control indicators include: gasoline antiknock property (research octane number, motor octane number, antiknock index), sulfur content, vapor pressure, contents of olefins, aromatics, benzene content, corrosion, distillation range, etc. In January 2014, the national general motors (gm) IV standard was used. The state administration of quality supervision and inspection and the national standards commission issued the mandatory national standards for motor vehicles in phase V. The plan is to be implemented at the end of 2016. The sulfur content is the most critical environmental protection indicator in vehicle gasoline. In order to further reduce the emission of vehicle pollutants, the national V standard lowers the sulfur content limit from 50ppm in the fourth stage to 10ppm, which is 80% lower. Manganese has the potential risk to human health, and the vehicle emission control system will also have adverse effects. According to the principle of prevention, the limit value of the manganese content indicator is reduced from 8mg/L in the fourth stage to 2mg/L, which stipulates that no artificial addition is allowed. In order to further reduce the photochemical pollution caused by the evaporation of gasoline, and reduce the gas intake system of the automobile engine, the national five standard reduced the level of olefin from 28% to 24% in the fourth stage. Due to the decrease of octane number caused by the reduction of sulfur and manganese, the number of gasoline used in phase V was adjusted from 90, 93 and 97 to 89, 92 and 95 respectively. At the same time, considering the development trend of the automobile industry, the index requirements of motor gasoline are added in the standard appendices. Yes, the application's error, yes, you're overcharging. It is now decided to return two tickets with two railway CARDS. There is no sign of apology in the response, which is just a "gesture of goodwill", which adds two standard return tickets to your chosen journey. To avoid huge core technology in the form with the original electronic chemical materials business competition, the company also announced the proposed wholly owned subsidiary of zhejiang KaiSheng fluorine chemical 100% equity and zhejiang borui electronic science and technology of 100% equity as a target for public stock transfer, the listed price is RMB 940 million. And originally borui company and responsible for implementing the 2016 KaiSheng non-public stock high purity electronic gas project (phase 1, 2), and fluoride special gas project will be sold with borui company equity transfer at the same time, the company will the three offering investment project has been used and the rest of the fund-raising (through borui back after the company equity transfer and interest) added $1.09 billion permanent JuHua stock liquidity. First of all, the earnings of the fund in 2017 are in an uncertain environment. The first half of the market is in a period of "cash shortage". Towards the end of the year, the central bank started to fight for the "money shortage", so monetary policy eased and interbank money market rates fell. As a result, yu 'ebao's yields suddenly fell below the 4 per cent mark. In the near future, the car owner who has changed the gasoline pump or unloaded the gas pump will not panic if there is a gasoline smell in the car. It is likely that the residue has not been cleaned up after the removal of the vehicle. The probability of such a situation is small, and the general replacement cycle of the gasoline pump is 100 thousand kilometers. But the gasoline filter is connected with the gasoline pump. The replacement cycle is shorter and the gasoline pump needs to be removed when replacing. In this case, simply check the installation of the gasoline pump and clean the surrounding area. Point 4: look at the guarantee. If the high yield p2p wealth management products of the platform are guaranteed, and the strength of the guarantee company, investors need to study it clearly.