Johnson Test Papers has been manufacturing easy to use rapid tests since 1938 providing fast and accurate results you can trust. Our broad range of products covers everything from simple pH testing, water analysis, production processes and measurements of [...]
This grade is used for the filtration of coarse particles and gelatinous precipitates such as ferric aluminum and magnesium hydroxides. Grade 305 is used in air monitoring and gas filtration when high flow rate is needed. This grade is [...]
This grade covers a wide range of laboratory applications and is used for clarifying liquids and for rapid filtration of coarser precipitates such as lead sulfate, lead chromate, calcium oxalate, calcium carbonate, aluminum phosphate, barium carbonate and beryllium hydroxide. [...]
This grade has a larger pore size than Grade 301, but with a lower filtration speed. Grade 303 also has higher absorption than Grade 301 is it used in general laboratory applications. Grade 303 is also found in agricultural [...]
Grade 302 is a thick smooth paper, suitable for the removal of fine particles. This paper is made with 100% pure cellulose fibres that have been strengthened to resist the pressure when they are used in filter press systems. [...]
Grade 301 is the slowest of the qualitative papers. This grade is used in qualitative analytical techniques to determine and identify materials. It is also extremely efficient in retaining very fine particles. Grade 301 is generally used for biological [...]
Johnson Test Papers offers litmus papers for the routine management of acid or alkali reactions in industry. These papers do not require the need for a colour chart as their purpose is to demonstrate qualitative analysis in a simple [...]
These pH strips and papers provide assurance to clinical staff that the tests being carried are reliable and consistent. Johnson Test Papers Strips for Hospital Use bear a CE mark for in-vitro-diagnostics 98/79/EWG and are approved and validated for [...]
Before fermentation, Johnson Test Papers’ Wine pH test strips are used to test the pH of the juice. They can also be used to test the pH of kombucha tea and cider. These strips work within the pH range [...]
