This standard specifies the requirements, test methods, sampling and marking, packaging, transportation and storage of motor gasoline composed of liquid hydrocarbons and liquid hydrocarbons and additives to improve performance. The products covered by this standard are suitable for use as fuel for spark-ignition internal combustion engines. Motor gasoline that meets the technical requirements in Table 1 of this standard can meet the requirements of GB 18352.2; motor gasoline that meets the technical requirements in Table 2 of this standard can meet the requirements of stage III in GB 18352.3.