Our pH papers are manufactured using high quality papers which are impregnated with mixed indicator solutions, dried and then cut to size. In general our pH papers are supplied in rolls or books which are both convenient but also protect against external effects such as moisture, light and ambient gases, resulting in a prolonged shelf life. A simple and effortless method for ascertaining the pH value of solutions, Johnson Test Papers have been manufacturing pH paper using high quality media impregnated with mixed indicator dyes with decades of experience. With their varied uses, Johnson Test Papers can provide a wide range of pH papers to suit the requirement. The pH value can be ascertained in an instant with these simple to use and rapid pH papers offered by Johnson Test Papers. Our customers’ confidence in our pH papers stems from demonstrable manufacturing operations and our longstanding knowledge.
The acidity or basicity of a solution is defined as the pH. A myriad of commercial organisations and functions rely on the routine determination of this extremely critical measurement. The pH measurement of a solution determines the colour change of a reagent known as an indicator dye. This colour change can be matched against a calibrated colour chart to provide the pH value.
Stable, Dependable, High-Quality
Numerous applications such as the ones below rely on this important measurement of pH therefore tests have to be consistently dependable and time efficient.
- food, pharmaceutical and chemical industry
- process water and waste-water analysis
- production and quality control
- research and development
Regardless of the final use, we will have a product fit for your requirements. Discover our range below, which is established globally as the benchmark for precise determination of pH.
|Universal Indicator Paper||pH 1 - 11||1-2-3-4-5-6-7-8-9-10-11|
|Universal Indicator Paper||pH 1 - 14||1-2-3-4-5-6-7-8-9-10-12-14|
|Comparator Paper||pH 1.0 - 3.5||1.0-1.5-2.0-2.5-3.0-3.5|
|Comparator Paper||pH 3.6 - 5.1||3.6-3.9-4.2-4.5-4.8-5.1|
|Comparator Paper||pH 5.2 - 6.7||5.2-5.5-5.8-6.1-6.4-6.7|
|Comparator Paper||pH 6.8 - 8.3||6.8-7.1-7.4-7.7-8.0-8.3|
|Comparator Paper||pH 8.4 - 10.0||8.4-8.7-9.0-9.3-9.6-10.0|
|Comparator Paper||pH 4.0 - 8.0||4.0-4.5-5.0-5.5-6.0-6.5-7.0-7.5-8.0|
|BCG Comparator Paper||pH 4.0 - 5.6||4.0-4.2-4.4-4.6-4.8-5.0-5.2-5.4-5.6|
|BTB Comparator Paper||pH 6.2 - 7.8||6.2-6.4-6.6-6.8-7.0-7.2-7.4-7.6-7.8|
|Comparator Paper||pH 0.5 - 5.5||0.5-1.0-1.5-2.0-2.5-3.0-3.5-4.0-4.5-5.0-5.5|
|Comparator Paper||pH 3.8 - 5.8||<3.8-3.8-4.1-4.3-4.5-4.7-4.9-5.2-5.5-5.8->5,8|
|Comparator Paper||pH 4.0 - 7.0||4.0-4.3-4.6-4.9-6.2-5.5-5.8-6.1-6,4-6.7-7.0|
|Comparator Paper||pH 5.4 - 7.0||<5.4-5.4-5.7-6.0-6.2-6.4-6.7-7.0>7.0|
|Comparator Paper||pH 5.5 - 9.0||5.5-6.0-6.5-7.0-7.5-8.0-8.5-9.0|
|Comparator Paper||pH 6.4 - 8.0||<9.4-6.4-6.6-6.8-7.0-7.2-7.4-7.6-7.8-8.0> 8,0|
|Comparator Paper||pH 7.2 - 9.7||<7.2-7.2-7.5-7.8-8.1-8.4-8.7-9.0-9.3-9.7 > 9.7|
|Comparator Paper||pH 8.0 - 10.0||8.0-8.2-8.4-8.7-9.-9.3-9.7 > 9.7|
|Comparator Paper||pH 9.0 - 13.0||9.0-9.5-10.0-10.5-11.0-11.5-12.0-12.5-13.0|
|Comparator Paper||pH 12.0 - 14.0||12.0-12.5-13.0-13.5-14.0|