机械安全性.激光加工机械.第3部分:激光加工机械和手持式加工设备及相关辅助设备用噪声降低和噪声测量方法(精度等级2)

[中文适用范围]： ISO/IEC 11553 的这一部分描述了处理噪声危害的要求，并规定了在标准化条件下高效执行激光加工机和手持式激光加工设备的空气噪声发射的确定、声明和验证所需的所有信息。 在 ISO/IEC 11553-1 和 ISO/IEC 11553-2 的范围内。 它规定了与噪声危害相关的安全要求。 它规定了用于测试的噪声测量方法、安装和操作条件，以及此类设备制造商提供的信息。 ISO/IEC 11553的本部分适用于ISO/IEC 11553-1和ISO/IEC 11553-2范围内的激光加工机和手持式激光加工设备。 噪声发射特性包括工作站的发射声压级和声功率级。 公布的噪声发射值允许对市场上的激光加工机和手持式激光加工设备进行比较。 使用该噪声测试规范（参见附件 A）可确保在特定限值内确定特征噪声发射值的可重复性。 这些限制由所使用的噪声发射测量方法的准确度等级决定。 ISO/IEC 11553 本部分规定的噪声发射测量满足工程方法的要求（精度等级 2）。 [外文原描述]： ISO/IEC 11553-3:2013 describes the requirements to deal with noise hazards and specifies all the information necessary to carry out efficiently and under standardized conditions the determination, declaration and verification of airborne noise emission from laser processing machines and hand-held laser processing devices within the scope of ISO/IEC 11553-1 and ISO/IEC 11553-2. It specifies the safety requirements relating to noise hazards. It specifies noise measurement methods, installation and operating conditions to be used for the test, together with the information to be supplied by manufacturers of such equipment. ISO/IEC 11553-3:2013 applies to those laser processing machines and hand-held laser processing devices included in the scope of ISO/IEC 11553-1 and ISO/IEC 11553-2. Noise emission characteristics include emission sound pressure levels at work stations and the sound power level. Declared noise emission values permit comparison of laser processing machines and hand-held laser processing devices on the market. The use of this noise test code (see Annex A) ensures the reproducibility of the determination of the characteristic noise emission values within specific limits. These limits are determined by the accuracy grade of the noise emission measuring method used. Noise emission measurements specified by ISO/IEC 11553-3:2013 meet the requirements of an engineering method (accuracy grade 2).