
发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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Noise of machines. Methods for determination of noise characteristics. General requirements
Noise. Methods of determinations of noise characteristics. General requirements
本标准规定了一般用途低噪声轴流通风机的技术要求、试验方法和检验规划。 本标准适用于通风换气、空调和生产场所使用的单级轴流通风机,其输送介质为空气或其它不含腐蚀性物质的气体混合物;通风机最大流量不超过75000m3/h或最高全压不超过490Pa;不适用于防爆、防腐、高温、矿井及其它有特殊用途的轴流
Technical requirement for environmental protection product. General low noise axle. Flow flower
Footwear, leather and imitation leather goods manufacturing machines - Noise test code - Common requirements.
General low noise axle-flow flower
本标准适用于电光源产品图样的绘制(下称“图样”)。 图样应按照国家标准GB 126~138~74《机械制图》、GB 1182~1184-80《形状和位置公差》、GB 1800~1804~79 ((公差与配合》的规定绘制。图徉的格式和填写方祛应按部标准ZBK 70003-85((电光源产品设计文件
General requirements for drawings of electric lamps
Przedmiotem niniejszego arkusza normy s? wymagania dotycz?ce ?rodków technicznych, które nale?y stosowa? w celu ochrony przed ha?asem pomieszcze
Building accoustics Noise protection of apartments in building General requirements and technical means of nois conlrol
This document deals with noise reduction as a safety requirement. It also specifies the methods for determining the sound pressure level
Aircraft ground support equipment - General requirements - Noise measurement methods and reduction
This document deals with noise reduction as a safety requirement. It also specifies the methods for determining the sound pressure level
Aircraft ground support equipment - General requirements - Part 4: Noise measurement methods and reduction
来自第101页
Noise. Attenuation of sound during propagation outdoors. Part 2. General method of calculation
Noise of machines. Determination of sound power levels using sound pressure. Comparison method in situ
Noise of machines. Methods for determination of noise characteristics. General requirements
Noise. Methods of determinations of noise characteristics. General requirements
本标准规定了一般用途低噪声轴流通风机的技术要求、试验方法和检验规划。 本标准适用于通风换气、空调和生产场所使用的单级轴流通风机,其输送介质为空气或其它不含腐蚀性物质的气体混合物;通风机最大流量不超过75000m3/h或最高全压不超过490Pa;不适用于防爆、防腐、高温、矿井及其它有特殊用途的轴流
Technical requirement for environmental protection product. General low noise axle. Flow flower
Footwear, leather and imitation leather goods manufacturing machines - Noise test code - Common requirements.
General low noise axle-flow flower
本标准适用于电光源产品图样的绘制(下称“图样”)。 图样应按照国家标准GB 126~138~74《机械制图》、GB 1182~1184-80《形状和位置公差》、GB 1800~1804~79 ((公差与配合》的规定绘制。图徉的格式和填写方祛应按部标准ZBK 70003-85((电光源产品设计文件
General requirements for drawings of electric lamps
Przedmiotem niniejszego arkusza normy s? wymagania dotycz?ce ?rodków technicznych, które nale?y stosowa? w celu ochrony przed ha?asem pomieszcze
Building accoustics Noise protection of apartments in building General requirements and technical means of nois conlrol
This document deals with noise reduction as a safety requirement. It also specifies the methods for determining the sound pressure level
Aircraft ground support equipment - General requirements - Noise measurement methods and reduction
This document deals with noise reduction as a safety requirement. It also specifies the methods for determining the sound pressure level
Aircraft ground support equipment - General requirements - Part 4: Noise measurement methods and reduction
来自第101页
Noise. Attenuation of sound during propagation outdoors. Part 2. General method of calculation
Noise of machines. Determination of sound power levels using sound pressure. Comparison method in situ








