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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 43073-2023 |
Pneumatics - Test method for measuring sound pressure levels of exhaust mufflers {译} 气动 测量排气消声器声压级的试验方法 |
China National Standards Levels test method |
 English PDF |
| GB/T 6881.2-2017 |
Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Engineering methods for small movable sources in reverberant fields—Comparison method for a hard-walled test room 声学 声压法测定噪声源声功率级和声能量级 混响场内小型可移动声源工程法 硬壁测试室比较法 |
China National Standards Levels test method |
English PDF |
| GB/T 33138-2016 |
Levels and test method for storage and backup system 存储备份系统等级和测试方法 |
China National Standards Levels test method |
English PDF |
| GB/T 27760-2011 |
Test method for calibrating the z-magnification of an atomic force microscope at subnanometer displacement levels using si (111) monatomic steps 利用Si（111）晶面原子台阶对原子力显微镜亚纳米高度测量进行校准的方法 |
China National Standards Levels test method |
English PDF |
| GB/T 25982-2010 |
Permissible levels and test methods of bus internal noise 客车车内噪声限值及测量方法 |
China National Standards Levels test method |
English PDF |
| GB/T 6881.3-2002 |
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 声学 声压法测定噪声源声功率级 混响场中小型可移动声源工程法 第2部分:专用混响测试室法 |
China National Standards Levels test method |
English PDF |
| GB/T 6881.2-2002 |
Acoustics--Determination of sound power levels of noise sources--Engineering methods for small，movable sources in reverberant field--Part 1:Comparison method for hard-walled test rooms 声学 声压法测定噪声源声功率级 混响场中小型可移动声源工程法 第1部分:硬壁测试室比较法 |
China National Standards Levels test method |
English PDF |
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