The financial statements have been prepared under the historical cost convention and in accordance with Financial Reporting Standard 102 section 1A Small Entities "The Financial Reporting Standard applicable in the UK and Republic of Ireland" and the Companies Act 2006.

Turnover is measured at the fair value of the consideration received or receivable, excluding discounts, rebates, value added tax and other sales taxes. Turnover from the sale of goods is recognised when goods have been delivered to customers such that risks and reards of ownership have transferred to them. Turnover from the rendering of services is recognised by reference to the stage of completion of the contract. The stage of completion of a contract is measured by comparing the costs incurred for work performed to date to the total estimated contract costs.

Expenditure on research and development is written off in the year which it is incurred

Tangible fixed assets are measured at cost less accumulated depreciation and any accumulated impairment losses. Depreciation is provided at rates calculated to write off the cost of the fixed assets, less their estimated residual value, over their expected useful lives on the following bases:

Rentals applicable to operating leases where substantially all of the benefits and risk of ownership remain with the lessor are charged against profit on a straight line basis over the lease term.