FILTER PAPER CIRCLES WHATMAN GRADE NO.40 7CM DIA BOX 100 Measuring Cylinders There is a cycle time

There is a cycle time from 5 seconds to 30 minutes

Supplied with four plain glass plates with bonded 1mm thick spacers

It is alkaline and is therefore unsuitable for cleaning non-ferrous metals such as aluminium

Safety valve test cycle

atmospheric  pressure  (scaled  970 to 1050hPa x 1hPa) and temperature  (scaled -20 to +60°C)

FILTER PAPER CIRCLES WHATMAN GRADE NO.40 7CM DIA BOX 100 Measuring Cylinders There is a cycle timeQuantitative Grade, Ashless Grade No. Flowrate Retention microns Wet strength Thickness, mm Ash % 40 General purpose gravimetric paper Medium 8 Low* 0. 20 0. 01 *Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of the paper.