Refill pack for Special indicator paper pH 4.0 to 7.0 (3 reels of 5m length and 7mm width)

• Singly sealed to ensure long-term stability and protection against many external influences

• Have to be placed in the plastic reel with color scale to be used

• Gradation (pH): 4.0 - 4.3 - 4.6 - 4.9 - 5.2 - 5.5 - 5.8 - 6.1 - 6.4 - 6.7 - 7.0