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Short-range general use pH Hydrion Litmus paper. 6mm (1/4in) wide x 4.5 metres (15ft)Each roll will give the user approximately 100 tests.
pH Litmus Paper Test Strip Roll pH 0.0 - 13.06mm (1/4in) wide x 4.5 metres (15ft)Each roll will give the user approximately 100 tests
Accurately measure the pH of both urine & saliva. Each roll will give the user approximately 100 tests and comes complete with Colour Chart and Instructions. Litmus paper. 6mm (1/4in) wide x 4.5 metres (15ft).
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