Code: 1.09514.0003
The Congo Red test paper is used to test narrow-range acidic solutions, and it is used in acid washes for metal plating where pH values are very low.
per PK 3
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Traditional pH indicator test papers, supplied on a 4,8 metre roll, consisting of high quality filter paper impregnated with indicator and mixed indicator solutions then dried and cut to size.
Roll format are easy to use and most common ranges are available in a refill format
Quality assurance - tests are checked and calibrated against certified buffer solutions
Wide and narrow pH ranges available
* no colour scale card supplied
** pack of 3×100 strips
