The glass tubing of 6.35 mm diameter and all glass joints should be completely airtight and no loss of vacuum should be permitted till the experiment is on. The accuracy of the viscometer bath should be ± 0.1☌ over the entire length of the viscometerĭ.Vacuum System – A vacuum system capable of maintaining a vacuum to within ± 0.05 Cm of the desired level up to & 30 cm of mercury.
A.Viscometer – Cannon-Manning Vacuums Viscometerī.Thermometer – The thermometer shall be of mercury in glass tube with cylindrical bulbs and made of suitable thermometer glass and shall conform to the following requirements:Ĭ.Bath – A suitable bath for immersion of the viscometer so that the liquid reservoir or top of the capillary, whichever is uppermost is at least 20 mm below the upper bath level.
