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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42657-2023 |
Test method for infrared refractive index temperature coefficient of infrared optical glass - vertical incidence method 红外光学玻璃红外折射率温度系数测试方法 垂直入射法 |
China National Standards incidence |
 English PDF |
| GB/T 12164.3-2013 |
Reference beta radiations - Part 3: Calibration of area and personal dosemeters and the determination of their response as a function of beta radiation energy and angle of incidence β参考辐射 第3部分：场所和个人剂量仪的校准及其能量响应和角响应的确定 |
China National Standards incidence |
English PDF |
| GB/T 26271-2010 |
Technology requirements and measurement methods for the coincidence of luminance and color difference signal of terrestrial digital TV receiver equipment 地面数字电视接收设备亮度与色差信号重合度技术要求及测量方法 |
China National Standards incidence |
English PDF |
| GB/T 21228.1-2007 |
Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room 声学 表面声散射特性 第1部分：混响室中无规入射声散射系数测量 |
China National Standards incidence |
English PDF |
| GB/T 17312-1998 |
Random-incidence and diffuse-field calibration of sound level meters 声级计的无规入射和扩散场校准 |
China National Standards incidence |
English PDF |
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