Spec. ind. pH 4.0-7.0, reel, refill

Special indicator paper pH 4.0-7.0 test paper - refill pack of 3 reels - measuring range: pH 4.0-4.3-4.6-4.9- 5.2-5.5-5.8-6.1-6.4-6.7-7.0 reel of 5 m length x 7 mm width