????目 | ??范?mg/L | ??次? | ?色?化 |
游?化物 | 0.02,0.05,0.1,0.2,0.5,1,2 | 40 | 白→淡紫→淡粉? |
化?需?量 | 0,30,60,120,200,≥250 | 50 | 紫色→?色→褐色 |
化?需?量 | 0,5,10,13,20,50,100 | 50 | ?色→紫→?→? |
化?需?量 | 0,2,4,6,≥8 | 50? | ?色→紫色→?色 |
六价? | 0.05,0.1,0.2,0.5,1,2 | 50? | 白→粉?→?紫色 |
?? | 0.5,1,2,5,10,20 | 40 | 白→粉?→?紫色 |
? | 0.5,1,2,3,5,>10 | 50 | 白→淡柑?→柑? |
? | 0.5,1,2,5,10 | 50 | ?→柑?色→?色 |
甲? | 0,0.1,0.2,0.3,0.5,1,2 | 40 | ?色→?色→?色 |
??化? | 3,7,13,20,35,70,100,130,200,400,700 | 50 | 淡?色→褐色 |
??化物? | 0.02,0.1,0.2,0.5,1,5 | 50 | 白→淡?色→?色 |
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