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Weights and measures regulations guidance

Guidance for inspectors and manufacturers of weights and measures equipment.

These equipment guidance notes are regulated under the Weights and Measures Act 1985 and the European Communities Act 1972.

In the case of weights and measures, consumers have no way of verifying the quantity of product they have purchased, such as the weight of some purchased vegetables or the volume of fuel put into a motor vehicle. The current legal protections ensure that the goods offered for sale by quantity can be trusted because the amount has been determined by a legally controlled (prescribed) measuring instrument, independently monitored according to risk by local enforcement authorities. By regulating measuring instruments used for trade, both consumers and business can be confident the quantity declared is accurate.

Previous versions of these guidance notes can be located on The National Archives.

Weights and measures equipment regulation guidance

Weights and measures equipment guidance notes issued by the National Measurement Office

  1. Approved verification: weights and measures law

    • Guidance
  2. Automatic catchweighers

    • Guidance
  3. Automatic gravimetric filling instruments

    • Guidance
  4. Automatic rail-weighbridges weights and measures

    • Guidance
  5. Beltweighers weights and measures

    • Guidance
  6. Capacity serving measures

    • Guidance
  7. Cold water meters equipment

    • Guidance
  8. Discontinuous totalisers equipment

    • Guidance
  9. Intoxicating liquor equipment

    • Guidance
  10. Liquid fuel and lubricants

    • Guidance
  11. Fuel forecourt installations

    • Guidance
  12. Material measures of length

    • Guidance
  13. Flow measuring instruments

    • Guidance
  14. Non-automatic weighing instruments

    • Guidance
  15. Non-prescribed weights and measures instruments

    • Guidance
  16. Road tankers weights and measures

    • Guidance
  17. Standard temperature accounting: weights and measures

    • Guidance