纳米制造关键控制特性第6-19部分:石墨烯基材料元素组成:CS分析仪ONH分析仪

[中文适用范围]： 本部分文件建立了通过CS分析仪和ONH分析仪测定由石墨烯基材料组成的粉末的化学关键控制特性（元素组成）的标准方法。该方法用于测定碳 (C)、硫 (S)、氧 (O)、氮 (N) 和氢 (H) 的含量。该方法适用于粉末形式的石墨烯、氧化石墨烯 (GO) 和还原氧化石墨烯 (rGO)。 [外文原描述]： IEC TS 62607-6-19:2021(E) establishes a standardized method to determine the chemical key control characteristic • elemental composition for powder consisting of graphene-based material by • CS analyser and ONH analyser. The method as described in this document determines the content of carbon (C), sulfur (S), oxygen (O), nitrogen (N) and hydrogen (H). The carbon (C) and sulfur (S) content in graphene powder is derived by the content of converted CO, CO2 and SO2, which is determined by infrared gas detector (IGD) using a non-dispersive infrared adsorption method in CS analyser. The content of oxygen (O), nitrogen (N) and hydrogen (H) in graphene powder is derived by ONH analyser using pyrolysis method. The O content is obtained according to the content of converted CO and CO2, which is determined by IGD using a non-dispersive infrared adsorption method. The N content is obtained according to the content of converted N2, which is determined by a thermal conductivity detector (TCD) method. The H content is obtained by measuring converted H2 or H2O, corresponding to TCD or IGD method. • The method is applicable for graphene, graphene oxide (GO) and reduced graphene oxide (rGO) in powder form.