自动急速定型加硫机天然气-硫化物的测定-第3部分:用电势分析法对硫化氢、硫醇式硫和硫化羰式硫的测定
Auto Rapid Heat Forming M / C natural gas-determination of sulphur compounds-part 3 : determination of hydrogen sulfide , mercaptan sulfur and carbonyl sulfide sulfur by potentiometry