1.1本试验方法包括从清洁、高效燃烧的角度评估馏出燃料的性能。它主要用于燃烧1号或2号燃油的家用供暖设备。它可以在实验室或现场使用，以比较使用给定加热装置的燃料，或比较使用给定燃料的加热装置的性能。 笔记 1-本试验方法仅适用于压力雾化和旋转式燃烧器。 1.2以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.2.1也使用任意和相对单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。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。 ====意义和用途====== 本试验方法将家用加热设备的运行效率与清洁燃烧联系起来。减少燃烧器中的燃烧空气可以提高运行效率。燃烧空气的减少程度受到不可接受烟雾产生的限制。通过描述烟雾密度和空气供应之间的关系，该测试方法（连同烟囱净温度数据）定义了给定装置在任何可接受烟雾水平下的最大效率。 对于某些类型的设备，如旋转壁火焰燃烧器，过多的过量空气将导致烟雾以及过少。在这些情况下，可接受烟雾水平下的最小过量空气点表示最佳效率。 设备的工作温度将影响这些测试结果。因此，过量空气与烟雾密度的关系易受运行循环不同点的某些变化的影响。实际上，通过在记录任何读数之前运行燃烧器15分钟，然后在随后的25分钟内获得测试数据，可以实现充分的折衷。 在实验室条件下，CO 2. 读数可复制至 ± 0.3%和烟度读数可复制到 ± ½ 烟点编号。

1.1 This test method covers the evaluation of the performance of distillate fuels from the standpoint of clean, efficient burning. It is intended primarily for use with home heating equipment burning No. 1 or No. 2 fuel oils. It can be used either in the laboratory or in the field to compare fuels using a given heating unit or to compare the performance of heating units using a given fuel. Note 1—This test method applies only to pressure atomizing and rotary-type burners. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.2.1 Arbitrary and relative units are also used. 1.3 This standard does not purport to address all of the safety concerns, if any, 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. ====== Significance And Use ====== This test method relates efficiency of operation of domestic heating equipment to clean burning. Reducing combustion air in a burner gives more efficient operation. The extent to which combustion air can be reduced is limited by the onset of unacceptable smoke production. By delineating the relation between smoke density and air supply, this test method (together with net stack temperature data) defines the maximum efficiency for a given installation at any acceptable smoke level. For certain types of equipment, such as the rotary wall-flame burner, too much excess air will cause smoke as well as too little. For these cases, the point of minimum excess air at the acceptable smoke level indicates the optimum efficiency. The operating temperatures of the equipment will affect these test results. The relation of excess air to smoke density is thus susceptible to some change at different points in an operating cycle. In practice, an adequate compromise is possible by operating the burner for 15 min before any readings are recorded and then obtaining the test data within a succeeding 25-min period. Under laboratory conditions, CO 2 readings are reproducible to ± 0.3 % and smoke readings are reproducible to ± ½ smoke spot number.