STOPPERS SILICONE BS2775 SOLID NO 37 PK 1 Manual Soaking Laboratory Cleaning Agents The respirator should be disposed

The respirator should be disposed of immediately the substance can be detected by the user through smell or taste

The top cup can accommodate test tubes up to 20mm diameter

Fan convection

white cellulose nitrate membrane filter

STOPPERS SILICONE BS2775 SOLID NO 37 PK 1 Manual Soaking Laboratory Cleaning Agents The respirator should be disposedRubber 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