A much improved version of the Boyle’s Law Apparatus, which is reliable and easy to use. The apparatus comprises a reservoir with a bourdon gauge, connected to a vertical glass tube.
The reservoir has a needle valve to control pressure, and a high-quality tyre-type valve for attaching the supplied pump. Air does not escape when the pressure is increased, until the needle valve is opened.
The pressure is displayed on a bourdon gauge, which has a transparent back, allowing students to see the internal workings. Pressures of up to 3.5x atmospheric pressure can be measured, which provides a good range of measurements.
The tube is of strong construction, and is further protected by a plastic safety screen. It has graduations so that the length of the air column can be measured, and is of uniform cross-section, so the volume of air is proportional to the length of the air column.
Unlike traditional Boyle’s Law apparatus, this unit has no rustable materials, so water can be used instead of oil, which offers superior results, as well as reduced hazard and mess.
The water is pumped into the tube, and the pressure and volume of air is measured at regular intervals. The inverse relationship between pressure and volume at constant temperature is easily observed.
UK MAINLAND AND NORTHERN IRELAND DELIVERY
FREE DELIVERY on all orders over £75.00.
Orders £74.99 or less are subject to a £7.50 (exc. VAT) handling charge.
If all items ordered are in stock, for orders placed before 2pm Timstar will endeavor to deliver next day.
UK MAINLAND AND NORTHERN IRELAND CARRIAGE SURCHARGE
Certain chemicals e.g. Lithium, Potassium, Methanol, Bromine etc., may now only be transported by ADR vocationally trained drivers. This has forced us to implement a carriage surcharge of £9.99 (exc. VAT) per order containing these chemicals (these are clearly marked in our chemical section).
Certain living products, such as Drosophila, will incur a carriage surcharge of £12.95 (exc. VAT). Please contact customer service for further clarification.
NON UK MAINLAND DELIVERY
FREE DELIVERY on all orders £250 or over.
Orders £249.99 or less are subject to a £25.00 (exc. VAT) handling charge.
- Scottish Highlands & Islands (non-framework agreement contract customers)
- Channel Islands
- Isle of Man
- Isle of Wight
NON UK MAINLAND CARRIAGE SURCHARGE
Certain chemicals and living products require special delivery and handling, for this reason, contact Customer Service for a separate quotation.
Please contact our Customer Services department before returning any goods.
Goods ordered in error are subject to a 10% restocking charge and are to be returned at the customers’ expense.
Customers must contact Timstar within 30 days of delivery to obtain authorisation to return any goods.
Goods returned by the customer without prior authorisation will not be credited. Timstar reserves the right to charge the customer a minimum of £15 to cover any collection and restocking costs it may incur as a result of a customer ordering error*. Customers must return all products unused and in their original boxes and packaging, including any manuals, software or accessories supplied with the products.
Computer software and consumables (discs, cartridges, cassettes etc) can only be returned if the original packaging is unopened and any seals intact. Failure to follow these guidelines may invalidate any claim.
Timstar cannot accept returns on certain products that are made to order, assembled prior to delivery or assembled and installed, unless they are faulty.
*All chemicals are non-returnable.