Single Type
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WEKO-TN TN (Total Nitrogen)
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WEKO-TP TP (Total Phosphorus)
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WEKO-COD COD(Chemical Oxygen Demand) Manganese / Chrome
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WEKO-NH4 NH4 (Ammonium Nitrogen)
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WEKO-NO3 NO3 (Nitrate Nitrogen)
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WEKO-TOC TOC (Total Organic Carbon)
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WEKO-PO PO4-P (Phosphate-Phosphorus)