氨氮 MR0.0 to 50.0 mg/L NesslerHI 93715-01
钙 0 to 400 mg/LOxalateHI 937521-01
镁0 to 150 mg/LCalmagite HI 937520-01
HI83225肥料浓度测定仪硝酸盐 HR0 to 300 mg/LCadmium ReductionHI 93728-01
硝酸盐 LR0.0 to 30.0 mg/L Cadmium ReductionHI 93728-01
硝酸盐 MR0 to 150 mg/L Cadmium ReductionHI 93728-01
磷酸盐 HR0 to 100 mg/L Amino AcidHI 93706-01
HI83225肥料浓度测定仪磷酸盐 LR0.0 to 10.0 mg/LAmino AcidHI 93706-01