1.范围本标准适用于未添加铅或磷化合物的四个等级的汽油。它们适用于各种气候条件下的火花点火发动机。本标准不适用于在零售点或零售点之后混合含氧汽油和汽油。本标准中规定的汽油可能含有有限浓度的脂肪醚和醇。省和联邦法规控制本标准中包含的一些参数。如果此类法规规定的限制比本标准中给出的限制更严格，则应适用规定的限制。根据本标准对产品进行测试和评估可能需要使用可能有害的材料和/或设备。 本文件并未涉及与其使用相关的所有安全方面。使用本标准的任何人都有责任在使用前咨询相关部门，并结合任何适用的监管要求制定适当的健康和安全规程。

1. SCOPEThis standard applies to four grades of gasoline to which no lead or phosphorus compounds have been added. They are intended for use in spark ignition engines under a wide range of climatic conditions.This standard is not intended to apply to the mixing of oxygenated gasolines and gasolines, either at the point of retail sale or after the point of retail sale.Gasoline specified in this standard may contain limited concentrations of aliphatic ethers and alcohols.Provincial and federal regulations control some parameters included in this standard. Where such regulations establish more restrictive limits than those given in this standard, the regulated limits shall apply.The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use.