Universal indicator papers

Roll length 5 m, 10 mm width. With two colour zones. Plastic box with 1 roll of indicator paper and colour scale. Duotest indicator papers combine two different indicator zones on a single strip. The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colors, simplifying and precisely assigning the pH value.

For determination of pH-value.Roll length 5m, 10mm width. With three colour zones, without hydrophobic zone.Plastic container with 1 roll of indicator paper and colour scale.

For determination of pH-value in coloured solutions.Supplied in packs of 200, 11 x 100mm W x L strips.