The Weights and Measures (Electrical Standards) Order, 1949
At the Court at Buckingham Palace, the 28th day of July, 1949 Present, The King's Most Excellent Majesty in Council Whereas it appears to the Minister of Fuel and Power that new denominations of standards for the measurement of electricity agreeing with the fundamental electrical units specified in Part I of the schedule to this Order are required for use for trade: And Whereas the said Minister has caused the denominations set out in Part II of the said schedule to be made and duly verified,...