1.1 本试验方法包括对燃烧馏分燃料产生的烟气中烟雾密度的评估。它主要用于燃烧煤油或取暖油的家用供暖设备。它可以在实验室或现场用于比较清洁燃烧的燃料或比较加热设备。 1.2 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.2.1 也使用任意单位和相对单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 该测试方法提供了一种将家庭供暖设备中的烟雾产生控制在可接受水平的方法。过高的烟雾密度会因热交换器结垢而对效率产生不利影响。 5.2 该测试方法所涵盖的烟雾密度范围已被发现与家庭供暖应用特别相关。如以下比较所示，与其他几种烟雾测试相比，它对少量烟雾更敏感: 烟点 数字 我，百分比 传输 瑞琼曼 烟度 0 100 0 2. 95 0 4. 80 0 6. 54 0 8. 18 0 9 0 0 9 0 0到5

1.1 This test method covers the evaluation of smoke density in the flue gases from burning distillate fuels. It is intended primarily for use with home heating equipment burning kerosine or heating oils. It can be used in the laboratory or in the field to compare fuels for clean burning or to compare heating equipment. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method provides a means of controlling smoke production in home heating equipment to an acceptable level. Excessive smoke density adversely affects efficiency by heat-exchanger fouling. 5.2 The range of smoke densities covered by this test method is that which has been found particularly pertinent to home-heating application. It is more sensitive to small amounts of smoke than several other smoke tests as indicated in the following comparison: Smoke Spot Number Icham, percent Transmission Ringelman Smoke Number 0 100 0 2 95 0 4 80 0 6 54 0 8 18 0 9 0 0 9 0 0 to 5