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hydrogen nitrogen

hydrogen nitrogen, Total:4 items.

In the international standard classification, hydrogen nitrogen involves: Testing of metals, Heat treatment.

Group Standards of the People's Republic of China, hydrogen nitrogen

• T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography

Professional Standard - Machinery, hydrogen nitrogen

• JB/T 7530-2007 General technical requirements for argon, nitrogen and hydrogen gases used in heat treatmen
• JB/T 7530-1994 General technical conditions of argon, nitrogen and hydrogen for heat treatment

Professional Standard - Geology, hydrogen nitrogen

• DZ/T 0064.74-2021 Groundwater Quality Analysis Methods Part 74: Determination of Helium, Hydrogen, Oxygen, Argon, Nitrogen, Methane, Carbon Monoxide, Carbon Dioxide and Hydrogen Sulfide by Gas Chromatography

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