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NANOCONTROL Multistandard Sewage Outflow 2 for analytical control of low concentrations: ammonium (0-03), COD (0-27, 0-22), nitrate (0-65, 0-64, 1-65), total phosphate (0-95, 0-76, 0-81), total nitrogen (0-83), total Kjeldahl nitrogen (0-67) consists of: 2x30 mL multistandard and 1x15 mL standard addition 100+, for 12-120 determinations