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Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss.
Reciprocating internal combustion engines—Measurement method for exhaust silencers—Sound power level of exhaust noise and insertion loss using sound pressure and power loss ratio
Schválení ST SEV 4869-84 doporu?ilo ministerstvo stavebnictví CSR. Zpracovatel a oborové normaliza?ní st?edisko: V?zkumn? ústav pozemních staveb
Noise. Sound insulation enclosures. Measurement methods of the insertion loss of enclosures
Building acoustics methods of testing silences in ventilation duet systems. Measurement of insertpd loss
本部分规定了使用专用声学侧试装置测量耳罩式护听器插人损失的方法。 本部分规定的方法不作为产品型式鉴定检验的基本测试方法。此方法获得的耳罩式护听器性能数据并不用于表征耳罩的真耳声衰减或耳翠所提供的防护性能。 本部分适用于产品型式鉴定检验或认证规程中产品性能一致性的调查,也适用于产品性能老化的调查
Acoustics.Hearing protectors.Part 3:Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
本标准规定了用脉冲管法、自由场法和压力罐近场法测量水声材料样品插入损失、回声降低和吸声系数的测量方法、测量条件、测量装置和测量不确定度。 本标准适用于水声材料及构件样品插入损失、回声降低和吸声系数的测量,其中脉冲管法适用于小样品的测量,自由场法和压力罐近场法适用于不同频段的大样品测量
Acoustics.Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples
本标准规定了水声材料样品插入损失和回声降低的两种测量方法:脉冲管法和自由场法。其测量结果可用于声呐罩、透声窗、反射罩障板和消声覆盖层的设计依据和性能评估。 本标准适用于均匀和分层均匀的水声材料样品
Acoustics. Measurement method of insertion loss and echo reduction for the underwater acoustical material sample
Acoustics. Hearing protectors. Part 3 : simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes.
To be read in conjunction with EN 2591-100
Elements of electrical and optical connection - Test methods - Optical elements - Insertion loss
本标准系针对光插入损失计(Optical insertion loss meter)所制定之标准规格,其中包含光插入损失计特性评价的试验顺序及制造标准并建议其最低要求事项。此标准亦适用于由数种仪器组合成之光插入损失量测系统。所谓光插入损失系指光由光纤组件(或光纤路径)输入端进入后
Optical insertion loss meter
Optical fiber amplifiers - Test methods -Part 7:Test methods for out-of-band insertion loses
FTOP-198 Measurement of Polarization Dependence of Insertion Loss of Single-Mode Fiberoptic Components by a Mueller Matrix Method
FOTP-198 Measurement of Polarization Dependence of Insertion Loss of Single-Mode Fiberoptic Components by a Mueller Matrix Method
This standard specifies a measurement method of insertion loss, in the required frequency bandwidth of coax contacts or connectors
Aerospace series - Elements of electrical and optical connection - Testm ethods - Part 222: Insertion Loss (I.L.)
This Technical Report specifies a method for measuringTheinsertion loss of ear-muff type hearing protectors for qualityinspection purposes.The method
Acoustics - Hearing Protectors - Part 3: Simplified Method for the Measurement of Insertion Loss of Ear-Muff Type Protectors for Quality Inspection Purposes (ISO/TR 4869-3 : 1989)
本标准规定了用于屏蔽各种噪声源的户外声屏障插入损失的测量方法。它详细说明了户外声屏障插人损失现场测量的过程,包括传声器位置、声源条件及测量地点的声环境。 本标准供人们用来测量给定地点和气象条件下声屏蔽的插入损失。它不能比较安装在不同地点同样一个声屏障的插入损失值。但它可通过直接法
Acoustics-In-situ determination of insertion loss of outdoor noise barriers of all types
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss.
Reciprocating internal combustion engines—Measurement method for exhaust silencers—Sound power level of exhaust noise and insertion loss using sound pressure and power loss ratio
Schválení ST SEV 4869-84 doporu?ilo ministerstvo stavebnictví CSR. Zpracovatel a oborové normaliza?ní st?edisko: V?zkumn? ústav pozemních staveb
Noise. Sound insulation enclosures. Measurement methods of the insertion loss of enclosures
Building acoustics methods of testing silences in ventilation duet systems. Measurement of insertpd loss
本部分规定了使用专用声学侧试装置测量耳罩式护听器插人损失的方法。 本部分规定的方法不作为产品型式鉴定检验的基本测试方法。此方法获得的耳罩式护听器性能数据并不用于表征耳罩的真耳声衰减或耳翠所提供的防护性能。 本部分适用于产品型式鉴定检验或认证规程中产品性能一致性的调查,也适用于产品性能老化的调查
Acoustics.Hearing protectors.Part 3:Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
本标准规定了用脉冲管法、自由场法和压力罐近场法测量水声材料样品插入损失、回声降低和吸声系数的测量方法、测量条件、测量装置和测量不确定度。 本标准适用于水声材料及构件样品插入损失、回声降低和吸声系数的测量,其中脉冲管法适用于小样品的测量,自由场法和压力罐近场法适用于不同频段的大样品测量
Acoustics.Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples
本标准规定了水声材料样品插入损失和回声降低的两种测量方法:脉冲管法和自由场法。其测量结果可用于声呐罩、透声窗、反射罩障板和消声覆盖层的设计依据和性能评估。 本标准适用于均匀和分层均匀的水声材料样品
Acoustics. Measurement method of insertion loss and echo reduction for the underwater acoustical material sample
Acoustics. Hearing protectors. Part 3 : simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes.
To be read in conjunction with EN 2591-100
Elements of electrical and optical connection - Test methods - Optical elements - Insertion loss
本标准系针对光插入损失计(Optical insertion loss meter)所制定之标准规格,其中包含光插入损失计特性评价的试验顺序及制造标准并建议其最低要求事项。此标准亦适用于由数种仪器组合成之光插入损失量测系统。所谓光插入损失系指光由光纤组件(或光纤路径)输入端进入后
Optical insertion loss meter
Optical fiber amplifiers - Test methods -Part 7:Test methods for out-of-band insertion loses
FTOP-198 Measurement of Polarization Dependence of Insertion Loss of Single-Mode Fiberoptic Components by a Mueller Matrix Method
FOTP-198 Measurement of Polarization Dependence of Insertion Loss of Single-Mode Fiberoptic Components by a Mueller Matrix Method
This standard specifies a measurement method of insertion loss, in the required frequency bandwidth of coax contacts or connectors
Aerospace series - Elements of electrical and optical connection - Testm ethods - Part 222: Insertion Loss (I.L.)
This Technical Report specifies a method for measuringTheinsertion loss of ear-muff type hearing protectors for qualityinspection purposes.The method
Acoustics - Hearing Protectors - Part 3: Simplified Method for the Measurement of Insertion Loss of Ear-Muff Type Protectors for Quality Inspection Purposes (ISO/TR 4869-3 : 1989)
本标准规定了用于屏蔽各种噪声源的户外声屏障插入损失的测量方法。它详细说明了户外声屏障插人损失现场测量的过程,包括传声器位置、声源条件及测量地点的声环境。 本标准供人们用来测量给定地点和气象条件下声屏蔽的插入损失。它不能比较安装在不同地点同样一个声屏障的插入损失值。但它可通过直接法
Acoustics-In-situ determination of insertion loss of outdoor noise barriers of all types