This standard specifies the requirements, test methods, inspection rules and product marking, packaging, storage, transportation and safety requirements for gas hydrogen sulfide used in the electronics industry. This standard applies to gaseous hydrogen sulfide for the electronics industry prepared by purification from industrial hydrogen sulfide as raw material. Gas hydrogen sulfide used in the electronics industry is mainly used in semiconductor PV, LED, LCD, IC and other fields. Molecular formula: H2S. Relative molecular mass: 34.08 (according to the 2011 international relative atomic mass).