ITU-R S.1673
Methodologies for the calculation of the worst-case interference levels from non-geostationary fixed-satellite service systems using highly-elliptical orbits into geostationary fixed-satellite service satellite networks operating in the 10 to 30 GHz frequency bands
现行
发布日期 :
2006-01-01
实施日期 :
ITU-R S.1560
Methodology for the calculation of the worst-case interference levels from a particular type of non-geostationary fixed-satellite service system using highly-elliptical orbits into geostationary fixed-satellite service satellite networks operating in the 4/6 GHz frequency bands
现行
发布日期 :
2011-03-01
实施日期 :
DIN EN ISO 11203/A1
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level - Amendment 1 (ISO 11203:1995/DAM 1:2018); German and English version EN ISO 11203:2009/prA1:2018
现行
发布日期 :
2001-05-01
实施日期 :
DIN EN 15257
Cathodic protection - Competence levels and certification of cathodic protection personnel
废止
发布日期 :
2001-03-01
实施日期 :