Refill pack for Special indicator paper pH 5.4 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): less than 5.4 - 5.4 - 5.7 - 6.0 - 6.2 - 6.4 - 6.7 - 7.0 - greater than 7.0