Measure peroxide levels in liquids in the range of 0-100ppm peroxide.
1) Fill both cells with 10ml of clean sample- The cell in the left hand side of the comparator acts as a blank.
2) To the other filled cell add 1 x hydrogen peroxide HR tablet and crush. Then add 1 x Acidifying PT tablet and crush.
3) Allow cell to stand for 2 minutes.
4) Rotate the disk until a colour match is obtained. Record the disk reading.