FILTER PAPER CIRCLES WHATMAN GRADE NO.41 18.5CM DIA BOX 100 Protein Saver Cards ‘Hot warning’ light illuminates whenever

‘Hot warning’ light illuminates whenever block temperature exceeds 70°C even when unit is switched off (but remains connected to the mains supply socket)

Without extraction thimbles

for dialysis tubing

Portable colorimetric dissolved oxygen meter which takes measurements using a modified Winkler method

FILTER PAPER CIRCLES WHATMAN GRADE NO.41 18.5CM DIA BOX 100 Protein Saver Cards ‘Hot warning’ light illuminates wheneverQuantitative Grade, Ashless Grade No. Flowrate Retention microns Wet strength Thickness, mm Ash % 41 For filtration of coarse and gelatinous precipitates Fast 20 25 Low* 0. 21 0. 01 *Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of the paper.