Refill pack for pH test paper Duotest pH 7.0-10.0 (3 reels of 5m length and 10mm width)

• 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 and increases the mechanical stability

• Gradation (pH): 7.0 - 7.3 - 7.6 - 7.9 - 8.2 - 8.5 - 8.8 - 9.1 - 9.4 - 9.7 - 10.0