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Co established physicochemical ammonia nitrogen (high concentration) WAK-NH4 (C) -4-20mg/L
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Co chemical phosphate (low concentration) WAK-PO4 (D) 0.05-2mg/L
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Co chemical total nitrogen (inorganic) WAK-TN-i-3 0-100mg/L
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Co chemical Total Chromium WAK Cr · T 0.5-20
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Co chemical hexavalent chromium WAK-Cr6+0.05-2mg/L
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Co chemical trivalent iron WAK-Fe3+2-100mg/L
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Co chemical Zinc WAK Zn 0-5mg/L
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Co chemical manganese WAK Mn 0.5-20mg/L
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Co chemical nickel (low concentration) WAK Ni (D) 0.3-10mg/L
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Co established physical, chemical and biochemical oxygen demand WAK-BOD 0-500mg/L
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