pH paper Tritest L, pH 1 - 11, refill

Indicator paper Tritest L

For determination of pH- value.
Roll length 6M, 14mm width. With 3 colour zones and 2 hydrophobic zones. The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colours and increases mechanical stability.
Refill packs Tritest L contain 3 rolls.
Range 1 - 11 pH