These papers do not require the need for a colour chart as their purpose is to demonstrate qualitative analysis in a simple ‘yes’ and ‘no’ manner. They will not provide accurate pH measurement, but will change from one colour to another at a set pH value, depending on the paper. These user friendly test papers are suitable for many industrial and educational applications.
Supplied in pack of 10, each book contains 20 leaves (60 x 10mm).
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