Refill pack for Special indicator paper pH 3.8 to 5.8 (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): less than 3.8 - 3.8 - 4.1 - 4.3 - 4.5 - 4.7 - 4.9 - 5.2 - 5.5 - 5.8 - greater than 5.8