VISOCOLOR® ECO test kit, silicic acid SiO2, 1 unit(s)VISOCOLOR ECO test kit, silicic acid SiO2, Density (D) 1,03 g cm The product line covers colorimetric, as well as titrimetric procedures. ECO test kits are suitable for analysing substances in the water with low limit values, whereby environmentally hazardous and toxic substances are largely eliminated. Very easy to operate using the pictograms. Colorimetric procedure. Suitable for use with PF12 photometer. Delivery incl. two 20 mm measuring tubes