Resistance welding equipment. Transformers. General specifications applicable to all transformers
发布日期:2014-02-28 实施日期:2014-02-28
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms.
Coupling capacitors and capacitor dividers. AC or DC coupling capacitors for harmonic-filters applications
发布日期:2014-06-30 实施日期:2014-06-30
Process management for avionics. Atmospheric radiation effects. Guidelines for single event effects testing for avionics systems
发布日期:2014-08-31 实施日期:2014-08-31
Acoustics. Laboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss
适用范围:This International Standard specifies methods for determining the insertion loss, in frequency bands, of ducted silencers with and without airflow, the sound power level, in frequency bands, of the f...
实施日期:2010-04-30
发布日期:2015-09-23 实施日期:2015-09-23
发布日期:2015-09-16 实施日期:2015-09-16
发布日期:2015-01-31 实施日期:2015-01-31
发布日期:2014-03-31 实施日期:2014-03-31
Semiconductor devices. Mechanical and climatic test methods. Part 21: Solderability (IEC 60749-21:2011); German version EN 60749-21:2011
发布日期:2016-10-01 实施日期:2016-10-01
Fibre optic interconnecting devices and passive components - Performance standard - Part 087-6: Non-connectorised single-mode bidirectional 1 310 nm upstream and 1 490 nm downstream WWDM devices for category O - Uncontrolled environment
适用范围:IEC 61753-087-6:2012(E) contains the minimum initial performance, test and measurement requirements and severities which a fibre optic pigtailed 1 310 nm upstream and 1 490 nm downstream wide wavelengt...
发布日期:2012-02-21 实施日期:2012-02-21
发布日期:2015-02-28 实施日期:2015-02-28
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