STOPPERS RUBBER BS2775 1-HOLE NO 71 PK 1 Culture Vessels time period (and temperature –

time period (and temperature – Universal 320R only)

They are ideal for routine analysis and quality control

The powder does not neutralise the liquids but indicators in the powder colour yellow with acid solutions and red with alkalis

Withstands pressures up to 2bar at 20°C ambient

STOPPERS RUBBER BS2775 1-HOLE NO 71 PK 1 Culture Vessels time period (and temperature –Rubber Stoppers to BS2775. Each stopper has a moulded in number, corresponding to the bottom diameter in millimetres. Hole drilling Natural rubber stoppers are available pre drilled. Where specified the hole diameter will be sizes: 3 and 4: supplied solid only 5 to 8: 1 hole of 3mm 9 to 105: 1 hole of 5mm 15 to 105: 2 holes of 5mm Neoprene rubber stoppers are available pre drilled to special order. Hole diameters are as given for natural rubber