WAK-COD化学需氧量水质离子测试包
,1


2分钟


50次/盒




亚硝酸氮


0.005,0.01,0.02,0.05,0.1,0.2,0.5




WAK-NO3（C）


硝酸（高浓度）


90,225,450,900,2250,4500


5分钟

07/13 17:58