FILTER PAPER CIRCLES WHATMAN GRADE NO.4 18.5CM DIA BOX 100 Universal Glass Bottles TST sterilisation indicator strips Colour

TST sterilisation indicator strips Colour changes yellow to purple/blue on completing a successful sterilisation cycle

Suitable for use up to 260°C or 300°C for short periods

Reference    WBU-200-8 WBU-200-12   WBU-200-18 WBU-200-26                   WBU-200-48                    Tank capacity  litres   8  12  18  26  48  Inner tank L x W  mm  115 x 300  205 x 300   380 x 300  380 x 300  430 x 330  Inner tank depth*

With spout and hexagonal glass foot

FILTER PAPER CIRCLES WHATMAN GRADE NO.4 18.5CM DIA BOX 100 Universal Glass Bottles TST sterilisation indicator strips ColourQualitative Grade Grade No. Flowrate Retention microns Wet strength Thickness, mm Ash % 4 Excellent retention of coarse and gelatinous precipitates Fast 20 25 Low* 0. 21 0. 06 *Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of the paper.