10ppm

1

The oxygen probe for iron and steel refining has been used extensively , but traditional MgO-single stabled zirconia solid electrolyte , due to the effect of electronic conductivity in low oxygen ( 10ppm ) refining conditions , has some measurement precision problem .

氧化锆固体电解质定氧探头在钢铁精炼中已经获得了广泛应用，但是在低氧（10ppm）条件下，传统氧化镁单一稳定的部分稳定氧化锆由于固体电解质电子电导的影响使其测量精度受到影响。
2

In this research , spherical activated carbons ( SAC ) were used to investigate the adsorption of four typical VOC ( toluene , benzene , n-heptane , and ethyl acetate ) with low-concentration ( 10ppm ) through dynamic adsorption on fixed bed .

本文采用固定床动态吸附方法，以球形活性炭为吸附剂，研究了四种典型单组份低浓度VOC（苯、甲苯、正庚烷和乙酸乙酯）的吸附规律。