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DA36042385 · published 2024-07-01 · completed 2024-07-01 · from Bio Aqua Group (Targu Mures)
1 "Amoniu-solutie standard MRC, 0,25 mg/l NH4 in apa, trasabil la NIST, Merck sau echivalent" flacon 100 ml 2 1322270100 Merck 264.00 528.00 2 Amoniu-solutie standard MRC, 1000 mg/l NH4 in apa, trasabil la SRMNIST, Tracecert, Merck sau echivalent flacon 100 ml 1 84952.180 VWR Chemicals 168.42 168.42 3 Nitrit - solutie standard trasabila la SRM -NIST, in apa, 1000 mg/l N02 , Tracecert, Merck sau echivalent flacon 100 ml 1 84984.180 VWR Chemicals 168.42 168.42 4 "Nitrit-solutie standard MRC, 0,2 mg/l N02, in apa, trasabil la NIST, Merck sau echivalent" flacon 100 ml 2 1250410100 Merck 223.68 447.36 5 CombiChek 20, pentru verificarea calitatii metodelor spectrofotometrice (nitrati, sulfati etc) bucata 1 1146750001 Merck 450.24 450.24 6 Nitrat -solutie standard MRC trasabila la SRM -NIST, 10mg/l N03 Certipur, Merck sau echivalent flacon 100 ml 1 1322410100 Merck 225.60 225.60 7 solutie standard de calciu trasabila la SRM -NIST, in HN03 1000mg/l Ca, Tracecert, Merck sau echivalent flacon 100 ml 1 1197780100 Merck 132.00 132.00 8 Solutie Titriplex III 0,1 mol/l,TlTRlPUR, trasabila la PTB si NIST,Certipur, Merck sau echivalent flacon 1000 ml 1 1084311000 Merck 190.08 190.08 9 "solutie standard clorura de potasiu 0.01 mol/l pt.conductivitate 0, 147 mS/cm trasabila la PTB- NIST,Certipur, Merck sau echivalent" flacon 500 ml 1 1015570500 Merck 911.04 911.04 10 buffer solutie pH 6,86 (20gr.C), Certipur, Merck sau echivalent flacon 500 ml 1 1990680500 Merck 141.12 141.12 11 acid ortofos