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Shafts for Blades are for use with PTFE Stirrer Blades Series 002.xxx. (Click Here) -
Stirrer Blades fit all standard shafts for blades, totally inert and non-scratch. Hole diameter 6.5mm, 3.2mm thick, PTFE shafts for these blades are 005.5xx Series (Click Here) -
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 'yes' and 'no' manner. They will not provide accurate pH measurement, but will change from one colour to another at a set pH value. These user-friendly test papers are suitable for many industrial and education applications

