滴定范围:0 to 400 ppm of SO2, 滴定精度:读数的5% ,取样量:50 mL
滴定范围:0 to 400 ppm of SO2,滴定精度:读数的5% , 取样量:50 mL
透射比准确度≤±1.5% 透射比重复性≤0.5%