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Mercury(II) sulphate solution 80 g/l, 1 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
Ammonium iron(II) sulphate solution
0,12 mol/l - 0,12 N, volumetric standard solution, for COD determination
Ferroin indicator solution
for sewage analysis, for COD determination
1,10-Phenanthrolin iron(II) salt solution
Potassium dichromate solution
0,02 mol/l - 0,12 N, volumetric standard solution, for COD determination
Potassium dichromate solution
1/24 mol/l - 0,25 N, volumetric standard solution, for COD determination
Mercury(II) sulphate solution 80 g/l, 2.5 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
Mercury(II) sulphate solution 80 g/l, 1 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
Ammonium iron(II) sulphate solution
0,12 mol/l - 0,12 N, volumetric standard solution, for COD determination
Ferroin indicator solution
for sewage analysis, for COD determination
1,10-Phenanthrolin iron(II) salt solution
Potassium dichromate solution
0,02 mol/l - 0,12 N, volumetric standard solution, for COD determination
Potassium dichromate solution
1/24 mol/l - 0,25 N, volumetric standard solution, for COD determination
Mercury(II) sulphate solution 80 g/l, 2.5 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
Mercury(II) sulphate solution 80 g/l, 1 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
Ammonium iron(II) sulphate solution
0,12 mol/l - 0,12 N, volumetric standard solution, for COD determination
Ferroin indicator solution
for sewage analysis, for COD determination
1,10-Phenanthrolin iron(II) salt solution
Potassium dichromate solution
0,02 mol/l - 0,12 N, volumetric standard solution, for COD determination
Potassium dichromate solution
1/24 mol/l - 0,25 N, volumetric standard solution, for COD determination
Mercury(II) sulphate solution 80 g/l, 2.5 l
0,02 mol K2Cr2O7/l, volumetric standard solution, potassium dichromate in sulphuric acid, for COD determination
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