用于悬挂装置的安装盒和外壳检测

IEC 61669-2015电声学. 助听器真耳声学性能特征的测量

This International Standard gives recommendations and requirements for the measurement and estimation of the real-ear acoustical performance characteristics of air-conduction hearing aids and for the measurement of certain acoustic properties of the ear related to the application of hearing aids. Measurements of real-ear acoustical characteristics of hearing aids which apply non-linear or analytical processing techniques are valid only for the test signals used and conditions employed. The purpose of this standard is to ensure that measurements of real-ear acoustical performance characteristics of a given hearing aid on a given human ear can be replicated in other locations with other test equipment.

BS EN 60670-21-2007家用和类似用途固定电气装置用电气附件接线盒和接线外壳.接线盒和接线外壳悬挂方法的详细要求

This clause of Part 1 is applicable with the following modification:Addition after the fourth paragraph:This standard applies to boxes and enclosures with provision for suspension means.

BS EN 60670-23-2008家用和类似用途固定电气设施附件外壳.第23部分:地板插座和外壳的详细要求

This clause of Part 1 is applicable except as follows:Addition after the fourth paragraph:This standard applies to boxes and floor enclosures.The flush floor boxes and flush floor enclosures are intended to be intended to protect accessoriesagainst load up to and including 1 000 N.