1.1本试验方法包括评估燃烧馏出燃料的烟气中的烟密度。它主要用于燃烧煤油或加热油的家用加热设备。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本标准无意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。 1.3以国际单位制表示的数值应视为标准。括号中的值仅供参考。也使用任意和相对单位。

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 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. 1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only. Arbitrary and relative units are also used.