Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 17248.2-2018 |
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 声学-机器和设备发射的噪声-在一个反射面上方可忽略环境修正的近似自由场测定工作位置和其他指定位置的发射声压级 |
China National Standards Reflecting |
 English PDF |
| GB/T 25261-2018 |
Solar heat Reflecting insulation coatings for buildings 建筑用反射隔热涂料 |
China National Standards Reflecting |
English PDF |
| GB/T 3768-2017 |
Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a Reflecting plane 声学 声压法测定噪声源声功率级和声能量级 采用反射面上方包络测量面的简易法 |
China National Standards Reflecting |
English PDF |
| GB/T 3767-2016 |
Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Engineering methods for an essentially free field over a Reflecting plane 声学 声压法测定噪声源声功率级和声能量级 反射面上方近似自由场的工程法 |
China National Standards Reflecting |
English PDF |
| GB/T 32524.2-2016 |
Acoustics—Determination of sound power level and directivity character of power capacitor using sound pressure—Part 2: Engineering methods for an essentially free field over a Reflecting plane 声学 声压法测定电力电容器单元的声功率级和指向特性 第2部分：反射面上方近似自由场的工程法 |
China National Standards Reflecting |
English PDF |
| GB/T 7660.3-2013 |
Reflecting prisms―Part 3: Optical parallelism and test method 反射棱镜 第3部分：光学平行度及其检验方法 |
China National Standards Reflecting |
English PDF |
| GB/T 7660.2-2013 |
Reflecting prisms―Part 2: Characteritics of image rotation 反射棱镜 第2部分：像偏转特性 |
China National Standards Reflecting |
English PDF |
| GB/T 7660.1-2013 |
Reflecting prisms―Part 1: Geometrical characteritics 反射棱镜 第1部分：几何特性 |
China National Standards Reflecting |
English PDF |
| GB/T 25261-2010 |
Solar heat Reflecting insulation coatings for buildings 建筑用反射隔热涂料 |
China National Standards Reflecting |
English PDF |
| GB/T 17248.2-1999 |
Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at otherspecified positions--Engineering method in an essentially free field over a Reflecting plane 声学 机器和设备发射的噪声 工作位置和其他指定位置发射声压级的测量 一个反射面上方近似自由场的工程法 |
China National Standards Reflecting |
English PDF |
| GB/T 3768-1996 |
Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a Reflecting plane 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 |
China National Standards Reflecting |
English PDF |
| GB/T 3767-1996 |
Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a Reflecting plane 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 |
China National Standards Reflecting |
English PDF |
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