These provide
an accurate and quick method of measuring the pH of a solution. The test paper
is merely dipped into the solution and the colour compared with the chart
inside the book. Alternatively, the colour of the paper can be compared to
a solution of known value.
Universal papers range from pH 1 to pH 11 or pH 1 to pH 14 and a colour chart
in steps of 1 pH is included.
Universal (pH 1 to pH 11) and Universal Full Range (pH 1 to pH 14) is available
as:
· Books (each containing 20 strips)
· Continuous reel form
· Loose strips
· Sheets
