1.1 本试验方法适用于家用或商用真空吸尘器系统（即组合式吸尘器）中使用的电动喷嘴。 1.2 该试验方法提供了一种通过加速实验室程序确定电机工作寿命（小时）的试验。电机在电动喷嘴中安装和操作时进行测试。 1.3 本试验方法仅适用于电动喷嘴。用于提供气流源的系统没有被考虑。 1.4 该试验方法仅限于测定家用或商用电动喷嘴的电机寿命。 1.5 以英寸-磅为单位的数值应视为标准。括号中给出的值仅供参考。 1.6 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。 1.7 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 测试结果提供了电动喷嘴的电机寿命的指示。 电机寿命结束将根据第节进行判断 3. 。

1.1 This test method covers the motorized nozzle used with household or commercial vacuum cleaner systems, that is, combination cleaners. 1.2 This test method provides a test for determining operating motor life in hours by an accelerated laboratory procedure. The motors are tested while mounted and operated in the motorized nozzle. 1.3 This test method covers only the motorized nozzle. The system used to provide the airflow source is not under consideration. 1.4 This test method is limited to the determination of motor life for an electrically powered household or commercial motorized nozzle. 1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.6 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. 1.7 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 The test results provide an indication of the motor life of an electric motorized nozzle. End of motor life will be judged in accordance with Section 3 .