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声学. 护听器. 第2部分: 佩带护听器时有效A-计权声压级的估算(ISO 4869-2-2018); 德文版本EN ISO 4869-2-2018
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:2018); German version EN ISO 4869-2:2018
参考页数:26P.;A4
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声学. 护听器. 第1部分: 声衰减测量的主观法(ISO 4869-1-2018); 德文版本EN ISO 4869-1-2018
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018); German version EN ISO 4869-1:2018
参考页数:28P.;A4
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声学. 护听器. 第2部分: 佩带护听器时有效A-计权声压级的估算(ISO 4869-2-2018); 德文版本EN ISO 4869-2-2018
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:2018); German version EN ISO 4869-2:2018
参考页数:26P.;A4
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声学. 护听器. 第1部分: 声衰减测量的主观法(ISO 4869-1-2018); 德文版本EN ISO 4869-1-2018
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018); German version EN ISO 4869-1:2018
参考页数:28P.;A4
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射频能量和电流的符号
Radio-Frequency Energy and Current-Flow Symbols
参考页数:28P.;A4
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射频能量和电流的符号
Radio-Frequency Energy and Current-Flow Symbols
参考页数:28P.;A4
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电离辐射警告.附助信号
Ionizing-radiation warning - Supplementary symbol
参考页数:10P;A4
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电离辐射防护屏蔽 用于50mm~100mm厚墙的铅屏蔽构件
Enclosures for protection against ionizing radiation; Lead shielding units for 50 mm and 100 mm thick walls
参考页数:55P;A4
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密封箱室部件 第3部分:转运装置如简易门、前室、双盖门转运装置、废物桶密封连接件
Components for containment enclosures - Part 3: Transfer systems such as plain doors, airlock chambers, double door transfer systems, leaktight connections for waste drums
参考页数:43P.;A4
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密封箱室部件 第1部分:手套/封袋接盘、手套/封袋孔盖、密封环和可更换装置
Components for containment enclosures - Part 1: Glove/bag ports, bungs for glove/bag ports, enclosure rings and interchangeable units
参考页数:54P.;A4
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