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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42665-2023 |
Test method for spherical indentation strength of porous ceramics {译} 多孔陶瓷球形压痕强度试验方法 |
China National Standards Test method spherical |
 English PDF |
| GB/T 36655-2018 |
Test method for alpha crystalline silicon dioxide content of spherical silica powder for electronic packaging—XRD method 电子封装用球形二氧化硅微粉中α态晶体二氧化硅含量的测试方法 XRD法 |
China National Standards Test method spherical |
English PDF |
| GB/T 25965-2010 |
Test methods of normal emittance of materials and hemispherical emittance of all-glass evacuated collector tubes 材料法向发射比与全玻璃真空太阳集热管半球发射比试验方法 |
China National Standards Test method spherical |
English PDF |
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