寻求ISO标准方法: ISO method 14402 – Total Phenolics总挥发酚 ISO method 14403 – Total Cyanides总氰化物 ISO method 7875-1:1996 – Surfactant表面活性剂 ISO method 11905-1 -- Total Nitrogen总氮 ISO method 15681-1 -- Total Phosphorus总磷 ISO method 10530:1992 – Total Sulfides总硫化物