Electroacoustics. Audio-frequency induction loop systems for assisted hearing. Part 2: Methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing confor...
Aluminium and aluminium alloys. HF seam welded tubes. Part 1 : technical conditions for inspection and delivery.
发布日期:2015-04-30 实施日期:2015-04-30
Harmonized system of quality assessment for electronic components. Radiofrequency coaxdial connectors. Generic specification.
实施日期:1991-10-01
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实施日期:2013-08-01
Harmonized system of quality assessment for electronic components radio frequency coaxial connectors serie ssma. Sectional specification. Blank detail specification.
实施日期:1985-10-01
发布日期:2015-12-01 实施日期:2015-12-01
Non-destructive testing. Ultrasonic testing. General principles
实施日期:2014-03-01
发布日期:2015-10-31 实施日期:2015-10-31
Ultrasonics. Power measurement. High intensity therapeutic ultrasound (HITU) transducers and systems
发布日期:2014-05-31 实施日期:2014-05-31
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