发布时间：2024-05-27 17:49:26 - 更新时间：2024年06月29日 15:22
点击量：0
有样品要送检？试试一键送检，5分钟极速响应
在线提交检测需求
对接客服咨询检测
Acoustics - Noise emitted by machinery and equipment - Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity.
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.
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2 : methods for special reverberation test rooms.
本标准规定了医用超声压电陶瓷材料分类、要求、试验方法及检验规则。 本标准适用于医用超声压电陶瓷材料
Piezoelectric materials for medical ultrasound
Specifies requirements and describes procedures for the measurement of sound pressure levels in air at a single point in space. These apply primarily
Measurement of Sound Pressure Levels in Air
本文标准规定了标准辐射稳态噪声、辐射非稳态噪声和辐射周期性变化噪声的铸造机械的A声级测定方法。亦可按本方法测定频带声压级。 本标准适用于各类铸造机械的噪声测定
Foundry machinery.Measurement method of sound pressure level
It is known that an excessive acoustic pressure level may produce auditory damage to the users. To prevent the occurrence of excessive acoustic
Efficiency of devices for preventing the occurrence of excessive acoustic pressure by telephone receivers and assessment of daily noise exposure of telephone users
本标准规定了在机器定置不动、发动机以额定转速空负荷运转的条件下，土方机械司机位置的时间平均A计权发射声压级的测定方法。 本标准适用于GB/T 8498定义的以及GB/T 25612-2010《土方机械 声功率级的测定 定置试验条件》附录A规定的土方机械
Earth-moving machinery.Determination of emission sound pressure level at operator's position.Stationary test conditions
本标准规定了烟草机械设备噪声声压级的测量环境、测量仪器、被测设备的安装和工作条件、声压级的测量、A计权表面声压级的计量、测量结果的记录和测量报告等。 本标准适用于设备的噪声声压级测量
Tobacco machinery.Measurement of the equipments sound pressure level
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections.
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections.
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections.
Ergonomics - Accessible design - Sound pressure levels of auditory signals for consumer products.
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering/survey methods for use in situ in a reverberant environment.
Acoustics - Measurement and evaluation of sound pressure levels from transport systems Part 2: Air transport system
Acoustics - Noise emitted by machinery and equipment - Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity.
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.
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2 : methods for special reverberation test rooms.
本标准规定了医用超声压电陶瓷材料分类、要求、试验方法及检验规则。 本标准适用于医用超声压电陶瓷材料
Piezoelectric materials for medical ultrasound
Specifies requirements and describes procedures for the measurement of sound pressure levels in air at a single point in space. These apply primarily
Measurement of Sound Pressure Levels in Air
本文标准规定了标准辐射稳态噪声、辐射非稳态噪声和辐射周期性变化噪声的铸造机械的A声级测定方法。亦可按本方法测定频带声压级。 本标准适用于各类铸造机械的噪声测定
Foundry machinery.Measurement method of sound pressure level
It is known that an excessive acoustic pressure level may produce auditory damage to the users. To prevent the occurrence of excessive acoustic
Efficiency of devices for preventing the occurrence of excessive acoustic pressure by telephone receivers and assessment of daily noise exposure of telephone users
本标准规定了在机器定置不动、发动机以额定转速空负荷运转的条件下，土方机械司机位置的时间平均A计权发射声压级的测定方法。 本标准适用于GB/T 8498定义的以及GB/T 25612-2010《土方机械 声功率级的测定 定置试验条件》附录A规定的土方机械
Earth-moving machinery.Determination of emission sound pressure level at operator's position.Stationary test conditions
本标准规定了烟草机械设备噪声声压级的测量环境、测量仪器、被测设备的安装和工作条件、声压级的测量、A计权表面声压级的计量、测量结果的记录和测量报告等。 本标准适用于设备的噪声声压级测量
Tobacco machinery.Measurement of the equipments sound pressure level
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections.
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections.
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections.
Ergonomics - Accessible design - Sound pressure levels of auditory signals for consumer products.
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering/survey methods for use in situ in a reverberant environment.
Acoustics - Measurement and evaluation of sound pressure levels from transport systems Part 2: Air transport system
首页
点击咨询
