1.
Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using a reference sound source
GB/T16538-1996声学声压法测定噪声源声功率级使用标准声源简易法
2.
Acoustics--Determination of sound power levels of noise sources--Requirements for the performance and calibration of reference sound source
GB/T4129-1995声学噪声源声功率级的测定--标准声源的性能要求与校准
3.
Acoustics--Determination of sound power levels of noise sources--Precision methods for anechoic and semi-anechoic rooms
GB/T6882-1986声学噪声源声功率级的测定消声室和半消声室精密法
4.
Acoustics--Determination of sound power levels of noise sources--Precision methods and engineering methods for reverberation rooms
GB/T6881-1986声学噪声源声功率级的测定混响室精密法和工程法
5.
Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a reflecting plane
GB/T3767-1996声学声压法测定噪声源声功率级反射面上方近似自由场的工程法
6.
Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a reflecting plane
GB/T3768-1996声学声压法测定噪声源声功率级反射面上方采用包络测量表面的简易法
7.
Acoustics--Determination of sound power levels of noise sources--Guide lines for the use of basic standards and for the preparation of noise test codes
GB/T14367-1993声学噪声源声功率级的测定使用基础标准与制订噪声测试规范的准则
8.
Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 2: Measurement by scanning
GB/T16404.2-1999声学声强法测定噪声源的声功率级第2部分：扫描测量
9.
Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 1: Measurement at discrete points
GB/T16404-1996声学声强法测定噪声源的声功率级第1部分:离散点上的测量
10.
Determination of sound power level for noise emitted by woodworking machinery
GB/T3770-1983木工机床噪声声功率级的测定
11.
Determination of sound power levels of noise emitted by household electrical appliances
GB/T4214-1984家用电器噪声声功率级的测定
12.
The figures can be used to easily calculate the sound power level of the sound source inside the duct through measuring the SPL at a single point outside of the duct.
利用这些图和简单公式,通过测量管外一点的声压级就可确定管内声源声功率。
13.
Acoustics--Standard ultrasonic power source
GB/T14368-1993声学标准超声功率源
14.
SOUND INTENSITY DISTRIBUTION AND ACOUSTIC POWER OUTPUT OF A SOUND SOURCE IN REVERBERATION CHAMBER
混响室内声源的声功率输出及声强分布
15.
Determination of sound power levels of noise emitted by metal cutting machine tools
GB/T4215-1984金属切削机床噪声声功率级的测定
16.
Determination of sound power level for noise emitted by reciprocating pump--Engineering method
GB/T9069-1988往复泵噪声声功率级的测定工程法
17.
Determination of sound power levels of internal combustion engines noise-Quasi-engineering method
GB/T1859-1989内燃机噪声声功率级的测定准工程法
18.
Determination of sound power level for noise emitted by centrifuger separator and filter - Engineering method
GB/T10894-1989分离机械噪声声功率级的测定工程法