家用和类似电器 - 机载声学噪声的测定代码第3部分:确定和验证声明噪声排放值的程序

[中文适用范围]： 本部分IEC 60704描述了确定和验证家用和类似电器噪声发射声明值的程序。 它适用于IEC 60704-1和IEC 60704-2所有部分涵盖的所有类别的家用和类似电器。 它适用于批量生产的电器，如批次、系列或批量生产，这些电器按照相同的技术规范制造，并具有相同的噪声发射声明值。 本部分IEC 60704： - 认为“声明”一词包括向潜在用户（消费者）提供噪声发射值的所有手段；这包括标签、手册、广告、商业和技术信息文件等； - 考虑批量生产的电器的声明； - 规定了一种简单的统计方法，通过仅调查三个电器的样本来验证声明值。 [外文原描述]： IEC 60704-3:2019 describes procedures for determining and verifying the declared values of the noise emitted by household and similar appliances. It applies to all categories of household and similar electrical appliances covered by IEC 60704-1 and all parts of IEC 60704-2, which include particular requirements for special categories of appliances. It applies to appliances being produced in quantity, such as in batches, series or lots, which are manufactured to the same technical specification and characterized by the same declared value of noise emission. This part of IEC 60704: – considers the term "declaration" to include all means for providing information on the noise emission values to potential users (consumers) of the appliances; this includes labels, brochures, advertisements, commercial and technical information papers, etc.; – considers the declaration for appliances manufactured by mass production; – specifies a simple statistical method for verifying the declared values by investigating a sample of only three appliances. This International Standard is to be used in conjunction with IEC 60704-1:2010 and the latest edition of IEC 60704-2 (all parts). This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: a) in Annex A, standard deviations that are now specified for various appliance categories in the parts of IEC 60704-2 have been excluded from Table A.1; b) furthermore, this edition makes reference to new standards and is implementing ISO/IEC Directives, Part 2 in a more accurate manner.