Designed for demonstration; the column is clearly visible to the whole class without them having to crowd around the demonstration bench. A wide-bore glass tube is mounted vertically in front of a scale graduated 0 to 65cm³. Zero corresponds to the inside of the closed (top) end of the tube.
Air is confined in the tube by a coloured oil contained in a metal pressure chamber which is fitted with a Bourdon-type gauge calibrated 0 to 3.4 x 10^5 Pa. As the pressure in the oil chamber is increased using a pump (not included); oil is forced into the glass tube and the volume of the contained air and its actual (total) pressure are directly indicated.
The tube is of extra strong glass having a very large safety overload margin.
As a further precaution a plastic safety screen is secured over the front.
- Supplied complete with red oil.
- Overall height: 690mm
Pump and Adaptor for Boyle's Law Apparatus is also required for use (B8R08103).
Replacement Oil is available to purchase separately (B8A41750)