用于懸掛裝置的安裝盒和外殼檢測

用于懸掛裝置的安裝盒和外殼檢測項目報價？??解決方案？??檢測周期？??樣品要求？

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IEC 61669-2015電聲學. 助聽器真耳聲學性能特征的測量

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家用和類似用途固定電氣裝置用電氣附件接線盒和接線外殼.接線盒和接線外殼懸掛方法的詳細要求

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家用和類似用途固定電氣設施附件外殼.第23部分:地板插座和外殼的詳細要求

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.