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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 43598-2023 |
Nanotechnology Determination of oxygen content and carbon-to-oxygen ratio of graphene powder X-ray photoelectron spectroscopy {译} 纳米技术 石墨烯粉体氧含量和碳氧比的测定 X射线光电子能谱法 |
China National Standards Determination carbon oxygen |
 English PDF |
| GB/T 35306-2023 |
Determination of carbon and oxygen content in silicon single crystal Low-temperature Fourier transform infrared spectroscopy {译} 硅单晶中碳、氧含量的测定 低温傅立叶变换红外光谱法 |
China National Standards Determination carbon oxygen |
English PDF |
| GB/T 40789-2021 |
Gas analysis—Online automated measuring systems for content of carbon monoxide,carbon dioxide and oxygen—Determination of performance characteristics 气体分析 一氧化碳含量、二氧化碳含量和氧气含量在线自动测量系统 性能特征的确定 |
China National Standards Determination carbon oxygen |
English PDF |
| GB/T 27894.6-2012 |
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen helium oxygen nitrogen carbon dioxide and C1 to C8 hydrocarbons using three capillary columns 天然气 在一定不确定度下用气相色谱法测定组成 第6部分：用三根毛细管色谱柱测定氢、氦、氧、氮、二氧化碳和C1至C8的烃类 |
China National Standards Determination carbon oxygen |
English PDF |
| GB/T 28768-2012 |
Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography method 车用汽油烃类组成和含氧化合物的测定 多维气相色谱法 |
China National Standards Determination carbon oxygen |
English PDF |
| GB/T 28124-2011 |
Determination of trace hydrogen,oxygen,methane and carbon monoxide in the inert gases - Gas chromatographic method 惰性气体中微量氢、氧、甲烷、一氧化碳的测定 气相色谱法 |
China National Standards Determination carbon oxygen |
English PDF |
| GB/T 22047-2008 |
Plastics - Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved 土壤中塑料材料最终需氧生物分解能力的测定 采用测定密闭呼吸计中需氧量或测定释放的二氧化碳的方法 |
China National Standards Determination carbon oxygen |
English PDF |
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