GB/T 33920-2025 in English

《GB/T 33920-2025柔性石墨板 试验方法》由TC350（全国填料与静密封标准化技术委员会）归口，主管部门为中国机械工业联合会。

Scope

This document specifies the test equipment, sample requirements, test steps and calculation of test results for the ash content, fixed carbon content, thermal weight loss, sulfur content, chlorine content, fluorine content and radiation resistance test of flexible graphite sheets. This document is applicable to the determination of the above-mentioned properties and element contents of flexible graphite sheets, and its range is: sulfur content $50~\mu{\mathrm{g}}/{\mathrm{g}}{\sim}10~000~\mu{\mathrm{g}}/{\mathrm{g}}$, chlorine content $1~\mu{\mathrm{g}}/{\mathrm{g}}\sim500~\mu{\mathrm{g}}/{\mathrm{g}}$, fluorine content $1~\mu{\mathrm{g}}/{\mathrm{g}}\sim1~000~\mu{\mathrm{g}}/{\mathrm{g}}$