Nitrite (NO2-) as N Back Catalog number: 59478 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MI511-100 Reagent kit for 100 tests (pH and free & total chlorine) Contains: 1 x 20 mL DPD1, 1 x 20 mL DPD2, 1 x 20mL DPD3, 1 x 20mL pH3 Price on request 15900-3020-100AN5 Malaoxon, 100µg/ml in Acetonitrile, 5ml Price on request C13711000 Flufenacet, 100mg Price on request