1.1本方法包括确定点火（爆燃开始）的最小能量和相关平板点火熄灭距离。 完整描述针对在正常环境温度和压力下与空气混合的烷烃或烯烃燃料。该方法适用于指定燃料与空气的混合物，从最容易点燃的混合物到接近可燃性成分极限的混合物。 1.2如果满足某些附加条件，则可以以本方法固有的所有精度扩展到其他燃料氧化剂组合以及其他温度和压力:（a）通过第9节中所述的时间测试建立混合物稳定性以及与炸弹、密封件和其他材料的兼容性； （b） 试验的预期峰值压力在炸弹的额定压力范围内（根据特定研究实验室的要求确定）；（c） 炸弹内的火花击穿与被测距离的Paschen定律一致；（d） 温度（包括放电电极的温度）均匀；和（e）如果温度不是环境温度，则所需的储能电容小于约9 pF。 1.3该方法是委员会正在开发的几种方法之一 E-27 用于确定化学品的危害，包括其在空气或其他氧化剂大气中的蒸汽。这些测量有助于评估由静电或其他电火花引起的燃料可燃性危险。然而，必须非常谨慎地使用淬火距离数据，因为它们主要适用于点火阶段，因此表示初始压力值，而不是较高压力下存在的较小值。 1.4本标准应用于测量和描述受控实验室条件下材料、产品或组件对热量和火焰的响应特性，不应用于描述或评估实际火灾条件下材料、产品或组件的火灾危险或火灾风险。然而，该测试结果可作为火灾风险评估的要素，该评估考虑了与特定最终用途火灾危险评估相关的所有因素。 1.5本标准可能涉及危险材料、操作和设备。本标准并非旨在解决与其使用相关的所有安全问题。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 第5节列出了具体的安全预防措施。

1.1 This method covers the determination of minimum energy for ignition (initiation of deflagration) and associated flat-plate ignition quenching distances. The complete description is specific to alkane or alkene fuels admixed with air at normal ambient temperature and pressure. This method is applicable to mixtures of the specified fuels with air, varying from the most easily ignitable mixture to mixtures near to the limit-of-flammability compositions. 1.2 Extensions to other fuel-oxidizer combinations, and to other temperatures and pressures can be accomplished with all the accuracy inherent in this method if certain additional conditions are met: (a) mixture stability and compatibility with bomb, seal, and other materials is established through time tests described in Section 9; (b) the expected peak pressure from the test is within the pressure rating of the bomb (established as required by the particular research laboratory); (c) spark breakdown within the bomb is consistent with Paschen's law for the distance being tested; (d) the temperature, including that of the discharge electrodes, is uniform; and (e) if the temperature is other than ambient, the energy storage capacitance required is less than about 9 pF. 1.3 This method is one of several being developed by Committee E-27 for determining the hazards of chemicals, including their vapors in air or other oxidant atmospheres. The measurements are useful in assessing fuel ignitability hazards due to static or other electrical sparks. However, the quenching distance data must be used with great prudence since they are primarily applicable to the ignition stage and therefore, represent values for initial pressure and not the smaller values existing at higher pressures. 1.4 This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. 1.5 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific safety precautions are listed in Section 5.