pH 1-11 Indicator Paper, refill, 3 x 5 m rolls

This pH Indicator Paper Refill Pack is designed for use with the pH Indicator Paper Dispenser Roll for pH Determination in the pH 1 to pH 11 range (product code: PH0203). Each of the 3 rolls in this pack measures 5m (length) x 6mm (width) and is made from high-quality filter paper to ensure optimum quality. The paper rolls are supplied unperforated, so you simply need to tear off the required length to test your sample. At each pH value, the paper changes to a single colour, which can be matched against the colour chart included with the refill pack or supplied with the dispenser. The pH gradations on the colour chart are in steps of 1. The pigments used on the colour chart have been precisely formulated to perfectly match the reaction colour of the pH indicator paper. This allows for reliable determination and easy interpretation of results. The pH indicator paper is suitable for many applications, both in the laboratory and in the field. The advantage over other pH testing methods is that no additional equipment is required compared to liquid test kits and digital meters. This makes it more portable, durable and easily replaceable. The pH Indicator Paper Refill Pack is supplied as a pack of 3 refill rolls. The rolls can be stored unopened for 2 years without sunlight.