IEC 60704-3:2019 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

标准编号：IEC 60704-3:2019

中文名称：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

英文名称：Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 3: Procedure for determining and verifying declared noise emission values

发布日期：2019-05-28

标准范围

IEC 60704-3:20 19作为IEC 60704-3:20 19 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60704-3:20 19描述了确定和验证家用和类似电器发出的噪声声明值的程序。它适用于IEC 60704-1涵盖的所有类别的家用和类似电器以及IEC 60704-2的所有部分，其中包括对特殊类别电器的特殊要求。它适用于批量、系列或批量生产的电器，这些电器按照相同的技术规格制造，并以相同的噪声排放声明值为特征。IEC 60704的这一部分:-认为术语“声明”包括用于向电器的潜在用户（消费者）提供噪音排放值信息的所有手段；这包括标签、小册子、广告、商业和技术信息文件等。；-考虑大规模生产制造的器具的申报；-规定了一种简单的统计方法，通过调查仅三个设备的样本来验证声明的值。本国际标准将与IEC 60704-1:20 10和最新版IEC 60704-2（所有部分）一起使用。这第三版取消并取代了2006年出版的第二版。本版构成技术修订版。与上一版相比，它包括以下重大技术变更:a)在附录A中，表A.1中排除了IEC 60704-2各部分中现在为各种设备类别规定的标准偏差；b)此外，该版本参考了新标准，并以更准确的方式实施ISO/IEC指令第2部分。

IEC 60704-3:2019 is available as IEC 60704-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

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.

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