1.1 本试验方法仅涵盖在特定条件下进行试验时，用于确定住宅中央真空清洁系统的相对地毯污垢清除效果的实验室试验。 1.2 本试验方法适用于用于清洁地毯的住宅中央真空清洁系统。 1.3 本试验方法仅适用于清除地毯上的嵌入污垢，而不适用于清除表面垃圾和碎屑。 1.4 以英寸磅为单位的数值应视为标准。 括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 注1: F11.21小组委员会正在积极寻求符合规范的新市场相关地毯 F655 在地毯行业的帮助下。尽管毛绒和Freize地毯面板不再可供购买，但一些实验室可能仍有样品可供测试。在这种情况下，表值仍然有效。 注2: 由于环境条件、时间变化、测试材料来源和操作员熟练程度的影响，当在同一实验室同时对多个电器进行比较测试时，大多数描述的测试方法将给出更可靠的结果，并由同一操作员进行，直到完成新的实验室间研究以提供重复性和再现性值。 1.5 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。 1.6 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====== 4.1 当在标准条件下和代表性类型的地毯上进行测试时，该测试方法提供了一种实验室测试，用于确定住宅中央真空清洁系统的相对地毯污垢去除效果。 4.2 这种实验室测试方法可能无法代表地毯在家中的污垢清洁效果。 4.3 为了为测量性能提供统一的基础，如中所述 1.2 ，标准化测试地毯和标准化测试污垢被用于该程序。 4.4 该结果反映了无负载的清洁能力，并且可能不能代表在污垢负载条件下的清洁能力。

1.1 This test method covers only a laboratory test for determining the relative carpet dirt removal effectiveness of residential central vacuum cleaning systems when tested under specified conditions. 1.2 This test method is applicable to residential central vacuum cleaning systems intended for cleaning carpets. 1.3 This test method applies only to embedded dirt removal from carpets, not the removal of surface litter and debris. 1.4 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. Note 1: The F11.21 subcommittee is actively pursuing new market relevant carpets for Specification F655 with the assistance of the carpet industry. Although plush and Freize carpet panels are no longer available for purchase, some laboratories may still have samples for testing. In such cases, the table values remain valid. Note 2: Due to the influence of environmental conditions, variations in time, origin of test materials, and proficiency of the operator, most of the described test methods will give more reliable results when applied for comparative testing of a number of appliances at the same time, in the same laboratory, and by the same operator until a new interlaboratory study has been completed to provide repeatability and reproducibility values. 1.5 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. 1.6 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 ====== 4.1 This test method provides a laboratory test for determining the relative carpet dirt removal effectiveness of residential central vacuum cleaning systems when tested under standard conditions and on representative types of carpets. 4.2 This laboratory test method may not give a representation of carpet embedded dirt cleaning effectiveness in the home. 4.3 In order to provide a uniform basis for measuring performance as described in 1.2 , standardized test carpets and standardized test dirt are employed in this procedure. 4.4 The results reflect a non-loaded cleaning capability and may not be representative of cleaning capabilities under dirt loading conditions.